During the last century, Grotta Romanelli (Southern Italy) has been a reference site for the European Late Pleistocene stratigraphy, due to its geomorphological setting and archaeological and palaeontological content. The beginning of the sedimentation inside the cave was attributed to the Last Interglacial (MISs 5e) and the oldest unearthed evidence of human occupation, including remains of hearths, was therefore referred to the Middle Palaeolithic. Recent surveys and excavations produced new U/Th dates, palaeoenvironmental interpretation and a litho-, morpho- and chrono-stratigraphical reassessment, placing the oldest human frequentation of the cave between MIS 9 and MIS 7, therefore embracing Glacial and Interglacial cycles. These new data provide evidence that the sea reached the cave during the Middle Pleistocene and human occupation occurred long before MISs 5e and persisted beyond the Pleistocene- Holocene boundary.
The Italian territory is rich in stratigraphic records from caves and rock shelters bearing archaeological findings that have contributed to the framework of the Quaternary stratigraphy in Europe. Recent research on iconic Italian sites revealed the importance of their chrono-, litho-, morpho- and bio-stratigraphical reassessment, considering the progresses that stratigraphy, palaeontology, and archaeology have made in the last 100 years1,2,3,4,5. In the Apulian region (Southern Italy) (Fig. 1a), several caves and rock shelters formed in a typical Mediterranean karst landscape6 preserved important records of long-term environmental change and prehistoric human activity6,7,8. Many of these caves are facing the seashore nowadays and their litho- and morpho-stratigraphical records provide information about Quaternary sea-level history9,10,11,12,13, palaeoenvironments14 and their relationships with human settlements. These caves also record direct evidence of Homo neanderthalensis King, 1864 (i.e., Grotta di Lamalunga15) and the earliest European occurrence of Homo sapiens Linnaeus, 1758 (i.e., Grotta del Cavallo16) (Fig. 1b).
Grotta Romanelli opens into Cretaceous limestone along the cliffs of the southeastern coast of Apulia (Fig. 1c). Since the beginning of the twentieth century, Blanc and others systematically excavated and described the infilling deposits of the cave and its content (reference therein in18,19) (Supplementary Material 1, Fig. S1 in Supplementary Material). The cave soon became a reference for Quaternary geomorphological and geological studies for the assessment of the Last Interglacial Relative Sea Level (RSL) in this area of the Mediterranean9,20. The deposits infilling the cave and the RSL indicators, such as Marine Limiting Points (MLPs,21,22) made of tidal notches, Lithophaga burrows, algal encrustation and shoreface deposits, were referred to MISs 5e marine highstand21,22. Within the cave, the MLPs are well preserved as they are buried by a succession made of, from bottom to top, sandy pebbles beach deposits, angular breccia and the sequence of the so-called “Terre Rosse” and “Terre Brune”, silty-sands deposits originally considered of aeolian origin23,24. The chrono-stratigraphical framework proposed by the first researchers was supported by two U/Th dates on stalagmitic layers and nine radiocarbon dates on charcoal and humic acids25,26,27. Following the correlation to MISs 5e for the beginning of the sedimentation inside the cave, the impressive fossil record of birds and mammals, together with portable art and parietal engravings, hearts, and limestone or flinty lithic tools was referred to the time span MIS5–1, also documenting the Last Glacial Maximum with the finding of the iconic Great Auk Pinguinus impennis (Linnaeus, 1758) (= Alca impennis)23,28. Moreover, Grotta Romanelli has been for a long time considered a reference site for early Late Pleistocene European and southern Italy terrestrial ecosystems, mammal faunal correlations and Middle Palaeolithic human technology (e.g.,29,30,31,32,33 and reference therein).
The archaeological and palaeontological findings from Grotta Romanelli, hosted in museums and institutions across Italy, have been the subject of several studies, both confirming29,30 or questioning31,34,35 the chrono-stratigraphic setting proposed by Blanc23. Recently, new excavations led to a reassessment of the stratigraphy of the uppermost part of the cave infilling36 and a partial revision of some of the palaeontological remains33,37,38,39. A critical review of the Last Interglacial MLPs and Sea Level Points Indicators (SLIPs in 20) along the stable coasts of the Mediterranean Sea11, indicated the highest Grotta Romanelli’s tidal notch (tn) as older than MIS 5e.
Here we present new U/Th ages, coupled with new litho- and morpho-stratigraphical evidence from the 6 m thick sequence still preserved inside the cave and the sedimentary record and geomorphological features found along the cliff in its immediate surroundings, revising the age of the lowermost cave infilling and the palaeoenvironmental interpretation proposed by Blanc23,24. Moreover, for the first time, we present evidence of litho- and morpho-stratigraphical units on the cliff above e below the cave entrance, which, bounded to the chrono-stratigraphical data of the cave deposits, provide new information for the Middle Pleistocene RSL history of this area of the Mediterranean.
During the 2017–2021 campaigns, four sections were opened inside the cave for stratigraphical and sedimentological observations coupled with geochronological (U/Th) and micromorphological sampling (Table 1, Supplementary Material 2, Fig. S2, S3 and Table S1 in Supplementary Material). On those sections, North (N), South (S), North-West (NW) and West (W) (Table 1, Fig. 2), five stratigraphic units were recognised (Table 1, Fig. 3). New geomorphological survey outside the cave was carried out. Six stratigraphic units were identified outside the cave along the cliff at higher or lower elevation or partially covering the cave entrance.
The litho- and morpho-stratigraphical settings of the successions inside and outside the cave are herein described, providing information on sedimentary environments and their palaeoenvironmental significance. Stratigraphic units are named with the prefix I or O indicate Inside or Outside the cave, respectively (Table 1).
Cave litho-, morpho-stratigraphy and related sedimentary environments
Today, the infilling sedimentary succession is cropping out only in the innermost part of the cave due to the impressive volume of sediments excavated by Blanc and afterwards (Fig. 2a, Supplementary Material 1). Originally completely filling the cave, the succession shows differences in thickness, geometry, and sedimentary facies according to the sectors of the cave where the sections are opened and the morphology of the bedrock (Fig. 2b). The basal part of the sediments fills solution and erosional features formed earlier on the floor and on the sides, both in vadose and subaerial conditions when the cave was already open to marine ingression. These features, undercutting the bedrock, consist of: (1) a basal erosional scour that enters the cave for about 25 m from the entrance, large max 2 m and getting narrower toward the inner part and (2) two tidal notches (tn), more evident on the northern side of the cave. The higher tidal notch (tn1) is found at 9.2 m a.s.l. and the lower (tn2) at 7 m a.s.l. Both tidal notches are characterised by the presence of algal encrustation and abundant Lithophaga burrows (Fig. 2c). The lithostratigraphic setting can be broadly subdivided into two parts: coarse- to very coarse-grained limestone gravels, pebbles, and boulders in the lowermost part of the succession abruptly changing upwards to fine-grained silts, clays and sands containing lenses of angular to subangular fine- to coarse-grained limestone gravels. A wedge-shaped roof spall is interbedded within the finer grained part of the succession (Fig. 3, Fig. 4). The main bounding surfaces are mostly horizontal or undulated. U/Th datings were performed on speleothems (flowstones) at the bottom and embedded within ISU2 (Fig. 4). The results provided ages of 325 ± 39 ka on top of the bedrock and 360 ± 87 ka and 218.8 ± 34 ka (Table S1 in Supplementary Material) in the lower-mid part and the top of the Unit respectively. In the N and S sector of the cave, ISU3 is buried under a roof spall (ISU4 in Fig. 3) covered by a flowstone U/Th dated at 112.5 ± 1 ka (N sector, Fig. 4, Table S1 in Supplementary Material) and 74 ± 6 ka (S sector, Fig. 4, Table S1 in Supplementary Material). Finally, the stalagmite on top of ISU3 in the W sector, provided a U/Th age of 43.3 ± 8 ka (Fig. 4, Table S1 in Supplementary Material).
Out of Cave Morpho- and Litho-stratigraphy
Outside the cave, both in the upper and the lower part of the cliff, further evidence of morpho- and lithostratigraphic units have been observed and described (Table 1, Fig. 5). They are shoreface deposits related to RSL highstands, older and younger than those observed within the cave. In both cases, the shoreface deposits are buried under terrestrial limiting points (TLPs sensu 20) debris-slope deposits indicating RSL lowstands. On the cliff next to the cave entrance, three tidal notches are preserved, tn1 at 9.2 m, tn2 at 7 m and tn3 at 5.5 m a.s.l. (Fig. 5a). In detail, tn1 and tn2 are the out-of-cave continuations of the tidal notches observed within the cave, where they have a lateral continuity of about 15 m (Fig. 5d). At the cave entrance, tn1 and tn2 are continuous, the higher is wider and deeper (1.4 and 0.7 m) than the lower (1 m and 0.4 m) and their morphology suggests their formation during rising RSL43,44,45. They are also characterised by a continuous riddling by Lithophaga holes, whereas only tn1 preserves a vermetid reef. Tn3 is found only below the cave entrance, laterally preserved for about 1.5 m high, 1.1 m wide and 30 cm deep, and it is partially covered by small patches of cemented reddish matrix gravels whereas to the south it is almost completely buried by OSU3. Above Grotta Romanelli, in the northern sector of the bay, a conglomerate made of unsorted polygenic pebbles and cobbles (OSU1) bury a flat erosional surface on the bedrock at about 18 m a.s.l. (Fig. 5a). and is unconformably overlain by OSU2 made of an ossiferous cemented angular breccia (Fig. 5a).
New fieldwork at Grotta Romanelli allowed a litho-, morpho- and chronostratigraphical re-assessment of the successions inside and outside the cave. This achievement is of paramount importance since the former chronostratigraphical setting of Grotta Romanelli assumed the beginning of the sedimentation inside the cave during MIS 5e and became a paradigm for Quaternary archaeology, palaeoanthropology, palaeontology, stratigraphy and sea-level history of Italy and the Mediterranean23. In Grotta Romanelli, the sedimentary evidence points to the deposition within an active humid karst setting7. Moreover, the position of the cave relative to the sea increases its importance concerning the sea-level change history of this sector of the Mediterranean22,46,47,48. In fact, the position of the water table in the coastal zone is linked to eustatic sea-level changes49 and the succession within Grotta Romanelli is one of the older in-cave marine sedimentary records not eroded by high rates of water flow. After the works of Blanc 23,24 (Supplementary Material 1) the RSL indicators within the cave (tn1 and tn2 in Figs. 2, 3) were considered coeval with and associated to the shoreface deposits belonging to ISU1 and were attributed to the Last Interglacial. This morpho-stratigraphical assumption was based on the observation that these were the only RSL indicators higher than the present-day sea level along the cliff of Grotta Romanelli. ISU1 is the only sedimentary MLP marker within Grotta Romanelli where sandy and clayey sediments were preserved in small conservative features, such as potholes, whereas gravels, pebbles and cobbles entered the cave during high-energy events resting over tn2, the lower tidal notch. Outside of the cave, above and below the cave entrance, three MLPs are for the first time found and described: OSU1 located at ca. 18 m a.s.l. (Fig. 5a, c), OSU3 found at ca. 3.8 m a.s.l. (Fig. 5a, f) and tn3 at 5.5 m a.s.l. (Fig. 5e, f). Therefore, MPLs found within Grotta Romanelli cannot be uniquely associated with the Last Interglacial. U/Th ages of ISU2 provide the older geochronological constraint for the whole succession. In fact, this chronology indicates that ISU1 should be dated back to the Middle Pleistocene. ISU2 is made of autochthonous debris derived from rock degradation of the ceiling and walls or from short-distance mass-deposition, re-worked within the cave according to the floor morphology lacking any palaeoenvironmental markers such as freeze–thaw features or frost slabs. Partial transport by water run-off is also suggested by the rough trough cross bedding and by the rare presence of reworked rounded marine pebbles from the underlying ISU1. Periods of non-deposition are indicated by the wavy irregular flowstone on top of the beds (Fig. 3) and by the local presence at the bottom of phytoclastic beds, possibly related to local small ponds with standing carbonate-rich water. The presence and distribution of sediments belonging to ISU2, therefore, does not provide specific palaeoclimatic nor palaeoenvironmental indications being mainly associated with the morphology of the cave7,50. The deposition of ISU2, according to the U/Th dates, occurred across a long-time span, suggesting that during this part of the Middle Pleistocene the cave was almost empty and that it underwent scarce, mainly autochthonous depositional events, also incorporating the older evidence of human and animals’ frequentation of the cave, including fire features, limestone lithic tools and burnt and unburnt bones23,24. During the last decade, a few fossils of the historical collection recovered by Blanc have been revised and the rhino material from ISU1 and ISU2 was referred to S. hundsheimensis35. Depositional environment and dynamics suddenly changed after ISU2, which is paraconformably buried by ISU3, macroscopically characterised by reddish colour (“Terre Rosse”). ISU3 is made of thinly layered planarly or cross-bedded silts, clays and sands indicating aqueous deposition through low-energy runoff. The lack of any evidence of in situ clay illuviation or other long-term soil-formation related features suggests that the iron-enrichment and the carbonate leaching of the groundmass is derived from the erosion of leached, argillic limestone soils in the overlying plateau and surrounding slopes. In fact, the sandy and silty mineral fraction of ISU3 is made primarily of quartz suggesting its provenance from the erosion of aeolian deposits such as coastal dunes or other older deposits originally present on top of the plateaux (i.e. OSU1) or from colluvial sediments or soils covering the surrounding landscape. The sediments therefore have been washed into the cave system and transported by run-off and/or karstic waters, indicating the beginning of landscape destabilisation51 within a warm and humid climatic context as suggested also by the presence of pollen spectra with a consistent amount of olive tree52. Once arrived inside the cave the sediments were redistributed over short distances by bi-directional water flows both toward the internal and the external part of the cave, by means of predominant sheet-flows (plane parallel bedding) and occasionally within rills (local cut and fill), possibly related to events of increased water availability (i.e. strong rainfall) alternating with periods of standing water (fining-upward trends and laminated clays) (Fig. S3d in Supplementary Material). Contemporaneous physical weathering of the bedrock within the cave provided the coarse-grained autochthonous carbonate fragments. Although the lack of evidence of dense vegetation, phases of non-deposition are highlighted by the common presence of biological voids, including chambers and channels (Fig. S3c in Supplementary Material), burrowing features, faecal pellets and locally small-sized coprolites. Rare elements of anthropogenic origin (i.e., burnt bone fragments) and fire-related origin (charcoals and charred plant tissues) (Fig. S3a, Fig. S3b in Supplementary Material) also suggest a short-distance transport of anthropogenic deposits within the cave system. Assuming that the age of the speleothem might reflect a long period of non-deposition within the cave and dipping vadose waters with precipitation of calcite, these ages post-date the deposition of ISU3 at least at the beginning of the Late Pleistocene. Due to the “colluvial” nature of the sediments inherited by the erosion of Interglacial leached soils ISU3 can be correlated to the early phases of climate deterioration that followed the Last Interglacial (i.e., MISs 5d-b). Fossils from ISU3 were recently debated and rhino remainss were attributed to Stephanorhinus hemitoechus42, canid specimens ascribed to Canis lupus34 and otter material to Lutra lutra39. ISU3 and ISU4 are in turn buried by ISU5, the so-called “Terre Brune '' (due to their brownish colours) of Blanc23 (Fig. 3, Fig. 4). The sedimentary characteristics are very similar to those of ISU3 and point to deposition in a low-energy sheet-wash and runoff environment alternating with phases of standing water within local ponds formed by consecutive events (Fig. S3e, Fig. S3f in Supplementary Material), although the lack of major discontinuities within the succession suggests that it was probably laid down at a regular pace. The random distribution of cross bedding dip suggests a direction of sediments transport according to local irregular morphology, i.e., the top of ISU4 that dammed the inner part of the cave, where finer grained sedimentation prevailed, and concentrated the coarser grained deposition in the southernmost sector of the cave (Sect. S in Fig. 3, Fig. 4) where a broad and shallow channel was filled by coarser-grained sediments including bedrock boulders and cobbles. Similarly, to ISU3, there is no evidence of soil formation features and the composition suggests the re-working of both ISU4 (limestone gravelly fraction) and ISU3 (colluviated reddish clays, Fig. S3g in Supplementary Material). The overall brownish colour and the lack of iron sesquioxide’s precipitation, together with the abundance of plant tissues, also suggests a sediments’ source from the erosion of brown soils covering the slopes surrounding the cave washed within the cave. Moreover, the abundance of anthropogenic components, such as charcoal fragments, bones (Fig. S3h in Supplementary Material) locally with evidence of thermal impact, charcoals and charred plant remains, indicate the reworking of anthropic deposits from other sectors of the cave33. However, most of the anthropogenic components are reduced in size and with seldom evidence of weathering or secondary impregnation by phosphate (Fig. S3g in Supplementary Material) and their origin should be related to short-distance re-working within the cave, lacking any features that could be linked to trampling or crushing. Moreover, radiocarbon dates of the same Unit in the S, W and SW sectors of the cave, provided ages for its deposition between 13.6 cal ka BP and 11.4 cal ka BP36,53 indicating high sedimentation rates at the Pleistocene-Holocene transition. Such rapid sedimentation occurred by both erosion of the surrounding landscape and related sediments and soil covers and partial re-working of the older succession within the cave, including the autochthonous coarse-grained gravels and cobbles of bedrock produced by the degradation of the cave walls and ceiling.
Considering this revised litho-, morpho- and chronostratigraphical setting, Grotta Romanelli introduces new elements about the Middle-Late Pleistocene sea-level history of this sector of the Mediterranean. Along the cliff of Grotta Romanelli there are RSL markers vertically stacked at different elevation, indicating 3 marine highstands alternated to as many marine low-stands indicators. The highest RSL marker (Fig. 5a, c), OSU1, indicates a high-energy littoral deposition over a marine abrasion platform modelled during a marine high-stand buried by the OSU2 debris accumulated during a following low-stand. Inside the cave the two tidal notches with Lithofaga burrows (tn1 at 9.2 m a.s.l. and tn2 at 7 m a.s.l.) are associated with ISU1. Assuming tn1 and tn2 as belonging to the same transgressive phase45 and dated before 320 ka BP (the average lower age of the overlaying low-stand indicator ISU2), they should be associated to the high-stand of the MIS 9 (Figs. 6, 7), as already debated by Mastronuzzi et al.9 and Antonioli et al.11 based on correlation with the elevation of other marine notches along the tectonically stable Apulian and Italian coasts. This attribution dismantles the Grotta Romanelli paradigm23 of the Last Interglacial age for the tidal notches and deposits found within the cave. A further consequence of this chronological setting is the possible attribution of the older marine record represented by OSU1 to the high stand of the MIS 11 (Figs. 6, 7), although currently, a standardised review of pre-MIS 5 Mediterranean sea-level proxies is not available 54. The marine terrace linked to the tn3 located at 5.5 m a.s.l. in front of the cave entrance (Figs. 5, 6, 7) can be therefore correlated to the MISs 5e, with an elevation within the variability for the same high stand in the same area of the Mediterranean9,11,54. After the Last Interglacial, the sea level drop and climate deterioration were followed by the emplacement of the thick debris units (OSU4, 5 and 6 in Figs. 5, 6, 7) that partially buried the cave entrance and were dismantled during the history of the excavations. OSU4 accumulated on top of OSU3, the MISs 5e terrace, and the chaotic setting as well as the presence of boulders made of cemented stratified breccias, and the occasional presence of rounded pebbles indicates that it originated by rockfalls originated by OSU1 and OSU2 from the overhanging cliff (Fig. 5). The subsequent OSU5 shows a thick layer dipping up to 35 degrees according to the slope, burying both OSU3 and OSU4 and dip below the present-day sea level (Fig. 5), marking its deposition during a well-established lowstand (MIS 4–3). Finally, OSU6, made of finer-grained flake-shaped limestone clasts, suggests the onset of cooler conditions along the slopes and the action of freeze–thaw on bedrock.
Considering the revised chronostratigraphical setting here presented, several implications for large mammal fauna can be inferred. The record of Stephanorhinus hundsheimensis (Toula, 1902) in ISU1 and ISU235 is generally documented during the latest Early and Middle Pleistocene sites of Europe (e.g.,55,56,57), with the latest occurrence attested approximately at 0.6 Ma (MIS 16–15;58,59). Nevertheless, Stephanorhinus hundsheimensis in Grotta Romanelli indicates that this taxon survived in southern Europe until MIS 7 (ISU2, Fig. 6). Moreover, Blanc23,24 reported the presence of the straight-tusked elephant, Palaeoloxodon antiquus (Falconer & Cautley, 1847), and Hippopotamus amphibius Linnaeus, 1758 (Hippopotamus antiquus Desmarest, 1882 in Mazza, 1995) in ISU3. This evidence has been deemed as one of their latest occurrences in Europe, allowing to hypothesise their survival up to MIS 4–360,61 although the latest well-dated occurrences of the straight-tusked elephant and hippo are referred to MIS 562,63. The chronological attribution of ISU3 to the early Late Pleistocene supports their European extinction after MIS 5. The complete hemimandible of Lutra lutra (Linnaeus, 1758) found during Blanc’s excavations23,24 was recently described by Mecozzi et al.39 confirming its taxonomic attribution. Since the European record of this carnivoran is quite scarce and mainly known from Holocene deposits64, its presence within ISU3 represents one of the earliest evidences of L. lutra in Europe.
The most relevant archaeological questions in Grotta Romanelli concerns the sporadic Middle Palaeolithic tools found in ISU1 (2 artefacts) and ISU2 (6 artefacts), whereas a rich sample was collected in ISU3 (1106 artefacts)31,65. Almost all the lithics are made on limestone, with the exception of two pieces on quartzite31,65. Piperno65 described the archaeological sample of the lower complex (ISU1-3), highlighting the use of the Quina technical system, the lack of Levallois technique and the lack of shell tools on Callista chione65. More recently, Spinapolice30 revised the lithic sample from ISU3 and reported the presence of the Levallois technique and in minor part of discoidal method, confirming the use of limestone as a raw material. According to the new age for ISU1 (layer K sensu 20, 21, n = 2) and ISU2 (layer I sensu 20; 21, n = 6), the lithic sample from these levels should be attributed to Middle Palaeolithic and Grotta Romanelli becomes one of the oldest evidence of the human technology in Apulia66. The abundant lithic from ISU3 represents, instead, one of the oldest Mousterian evidence of Apulia31,32,66.
A major issue deriving from the new chrono-stratigraphic setting regards the fireplaces that were described, and completely excavated, by Blanc23,24. The lowermost fireplace was found directly resting over the marine gravels of ISU1, inside a large pothole23. The fireplace included charcoals, flint tools, and burnt and charred bones of Rhinoceros merckii (= Stephanorhinus hundsheimensis in35), Hippopotamus amphibius, Dama dama and Oryctolagus cuniculus23. A younger fireplace within ISU2 was also reported but lacking any associated lithic tool or bone remains. To date, the use of fire has been recorded in several European sites since 400–300 ka67,68, with scarce evidence recorded from caves68. In Italy, the oldest evidence is from Campitelli quarry (Tuscany), referred to latest MIS 769 and Molare shelter (Campania), referred to MIS 570. Therefore, according to the new chronology, the fireplace resting above ISU1 represents the earliest record from the Italian Peninsula.
Grotta Romanelli is one of the few localities in this area of the Mediterranean where 3 RSL indicators consisting of MLPs are stacked along the same cliff at decreasing elevation from 18 m down to 5.5 m a.s.l. (MIS 11, MIS 9, MISs 5e) providing new evidence for Middle-Late Pleistocene sea-level changes in this part of the Apulian region. The newly assessed chronology of the sedimentary succession filling the cave indicates an early frequentation of the cave under conditions of relative environmental stability, dominated by debris accumulation at very low sedimentation rates (ca. 1 m in 150 ka). The oldest human and faunal frequentation occurred between MIS 9 and MIS 7, earlier than previously supposed21. The environmental conditions suddenly changed after the Last Interglacial when soil erosion processes on the surrounding slopes brought fine-grained sediments in the cave. A long-lasting hiatus in the sedimentation is marked by the occurrence of several speleothems resting on top of ISU3 and ISU 4 spanning from 112 to 43 ka. The complete and final filling of the cave occurred mostly during the MIS 2–1 transition, recording human and animal frequentation once again. Due to the intense excavation activities of the past and the consequent lack of sediment, we assume that different sedimentary environments and conditions may have characterised the cave sector closer to the entrance, probably providing more suitable conditions for human settling, as indicated by the evidence of fire, food and frequentation previously reported. In fact, in the inner part of the cave the elements of anthropogenic origin are anyhow present (see also, 35) although at a minor extent and as minor components, as evidenced also by micromorphological observations. The new chronostratigraphic assessment of Grotta Romanelli infilling deposit allows to redefine several important bioevents for European mammal palaeo-communities and add important information for human presence in the Mediterranean area. The occurrence of Stephanorhinus hundsheimensis (Toula, 1902) in ISU1 and ISU235 represents the last occurrence of this taxon in Europe, previously attested at about 600 ka (Isernia Faunal Unit). This effectively suggests that a large revision of the Middle Pleistocene rhinoceros is needed to clarify the evolution of S. hundsheimensis. The attribution of ISU3 to MIS 5 implies that the mandible of the historical collection of Blanc ascribed to the Eurasian River otter, Lutra lutra (Linnaeus, 1758)23,24,39 is the oldest record of this species in Europe. Moreover, the fossils of Palaeoloxodon antiquus (Falconer & Cautley, 1847) and Hippopotamus amphibius Linnaeus, 1758 from ISU3 were considered among the last occurrences of these taxa in Europe, allowing to hypothesise their survival up to MIS 4–325. The new chronology of ISU3 suggests that the straight-tusked elephant and the hippopotamus went extinct after MIS 5 63. New insights within the human frequentation of the cave allow the attribution of the fireplaces reported by Blanc23,24 as referred to Middle Pleistocene hominins (H. neanderthalensis or Homo heidelbergensis Schoetensack, 1908), representing some of oldest fireplaces in Europe Mediterranean area67,68. Also, the lithic industry on top of the Middle Pleistocene ISU1 and ISU2 and those from the early Late Pleistocene ISU3 are attributed to the Mousterian31,65 and represent the oldest evidence of human technology in the Salentine Peninsula66.
Litostratigraphy and facies/microfacies analysis
Lithostratigraphy was investigated by preparing, cleaning, measuring and describing the sections inside the cave and surveying, cleaning, measuring and describing the natural outcrops around and on the cliff just above and below the cave entrance, including those still directly damming the cave entrance. Facies analysis was made at the macroscale in order to get information about the depositional context, the related palaeoenvironment in the surroundings of the cave and the correlation among the different units.
Sedimentary facies in caves are generally based on field description of grain-size, fabric and compositional characteristics of coarse-grained deposits derived by physical and chemical weathering of the bedrock and/or transported by running waters both of karstic and external arrival66.
However, when cave sediments are fine-grained or very fine-grained, or with weakly developed sedimentary structures or apparent massive structures, the facies analysis can be improved by their study at a scale smaller finer than the field observation, that is micromorphology of undisturbed samples71,72. Moreover, in human settled cave environments the investigation at the micro-scale can be useful for the recognition of evidence such as trampling, maddening, fire-use etc. or depositional and post-depositional processes that can be assessed at the micro scale including palaeo-environmental information of paramount importance for the determination of the sedimentary context of artefacts and other human and animal remains66,73.
Undisturbed samples were removed by simple extraction with standard Kubiena boxes (10 × 7 cm) in the field and then prepared at “Servizi per la Geologia” lab (Piombino, Italy) by impregnation with a mixture of resin, styrene, and hardener; curing; cutting into cm‐thick slabs; and final preparation of 25 µm thin sections, measuring 95 × 55 mm (Supplementary Material 2). Thin sections were analysed under a polarising microscope at the University of Torino at magnifications between × 20 and × 1000, using plane polarised and cross polarised light. Images were captured by a digital camera for polarising microscopy. Thin sections were described following the guidelines proposed by Stoops74 and after Nicosia and Stoops75.
Six flowstone and one stalagmite samples were dated with U–Th techniques at the High–Precision Mass Spectrometry and Environmental Change Laboratory (HISPEC), Department of Geosciences, National Taiwan University76,77. For each sample, clean check subsample, 0.5–1 g, were selected, gently crushed, ultrasonicated, and then dried at 50 °C in a class 10,000 clean room78. The cleanest fragments, 0.05–0.10 g, were picked for U–Th chemistry76 and instrumental analysis to determine U–Th isotopic and concentration data on a multi-collector inductively coupled plasma mass spectrometer (MC–ICP–MS), Thermo Electron Neptune77. Uncertainties in the U–Th isotopic data were calculated offline79. Half-lives of U–Th nuclides used for age calculation, relative to 1950 AD, are given in Cheng et al.80. Isotopic and age errors given are two standard deviations of the mean and two standard deviations, respectively, unless otherwise noted.
Morphostratigraphy and geomorphological mapping
Geomorphological and morphostratigraphic investigation were carried on by the classic methods of the field survey in the area surrounding the cave and, on the cliff, above and below the cave entrance. During fieldwork a geomorphological map was sketched by recognising and classifying landforms and related deposits according to their origin (morphogenesis), state of activity (Supplementary Material 3 and Fig. S4 in Supplementary Material) and, at the same time with lithostratigraphic survey, describing the sedimentary characteristics and facies of the deposits. The morpho-stratigraphical position of each Stratigraphic Unit was assessed based on its lithostratigraphic and elevation above the sea level. Similar approach for relative sea-level (RSL) markers such as slope and cave deposits (Terrestrial Limiting Points TLP, following 20) and tidal notches apexes or shoreface deposits (Marine Limiting Points MLP, 20), thus helping to assess different cycles of marine high-stands followed by low-stands. Line drawing sections seaward Grotta Romanelli were realised to underline the chronostratigraphic relationship. The elevation of MLPs (tidal notches apexes and marine terrace below the cave entrance) were measured with total station referred to the ground point control of the archaeological excavations plus its elevation on the present-day tidal notch apex, with an estimated error of ± 20 cm. whereas the elevation of the marine deposits above the cave entrance was measured with GPS and Topo Map, with an estimated ground error of ± 50 cm above the present-day tidal notch apex81.
All data generated or analysed during this study are included in this published article (and its supplementary information files).
Peresani, M., Cristiani, E. & Romandini, M. The Uluzzian technology of Grotta di Fumane and its implication for reconstructing cultural dynamics in the Middle-Upper Palaeolithic transition of Western Eurasia. J. Hum. Evol. 91, 36–56. https://doi.org/10.1016/j.jhevol.2015.10.012 (2016).
Moroni, A. et al. Late Neandertals in central Italy High-resolution chronicles from Grotta dei Santi (Monte Argentario—Tuscany). Quat. Sci. Rev. 217, 130–151. https://doi.org/10.1016/j.quascirev.2018.11.021 (2018).
Holt, B. et al. The middle-upper palaeolithic transition in northwest Italy: new evidence from riparo Bombrini (Balzi Rossi, Liguria, Italy). Quat. Int. 508, 148–152. https://doi.org/10.1016/j.quaint.2018.11.032 (2018).
Spinapolice, E. E. et al. Back to Uluzzo—Archaeological, palaeoenvironmental, and chronological context of the Mid-Upper Palaeolithic sequence at Uluzzo C rock shelter (Apulia, Southern Italy). J. Quat. Sci. 37(2), 217–234. https://doi.org/10.1002/jqs.3349 (2021).
Marra, F., Rolfo, M. F., Gaeta, M. & Florindo, F. Anomalous Last Interglacial Tyrrhenian sea levels and Neanderthal settling at Guattari and Moscerini caves (central Italy). Sci. Rep. 10(1), 1–16. https://doi.org/10.1038/s41598-020-68604-z (2020).
Woodward, J. C. & Goldberg, P. The sedimentary records in Mediterranean rockshelters and caves: Archives of environmental change. Geoarchaeology 16(4), 327–354 (2001).
Lewin, J. & Woodward, J. C. Karst geomorphology and environmental change. In The Physical Geography of the Mediterranean (ed. Woodward, J. C.) 287–317 (Oxford University Press, Oxford, 2009).
Bar-Matthews, M., Ayalon, A., Kaufman, A. & Wasserburg, G. J. The Eastern Mediterranean palaeoclimate as a reflection of regional events: Soreq cave, Israel. Earth Planet. Sci. Lett. 166(1–2), 85–95. https://doi.org/10.1016/S0012-821X(98)00275-1 (1999).
Mastronuzzi, G., Quinif, Y., Sansò, P. & Selleri, G. Middle-Late Pleistocene polycyclic evolution of a stable coastal area 1620 (southern Apulia, Italy). Geomorphology 86(3–4), 393–408. https://doi.org/10.1016/j.geomorph.2006.09.014 (2007).
Benjamin, J. et al. Late Quaternary sea-level changes and early human societies in the central and eastern Mediterranean Basin: an interdisciplinary review. Quat. Int. 449, 29–57. https://doi.org/10.1016/j.quaint.2017.06.025 (2017).
Antonioli, F. et al. Morphometry and elevation of the last interglacial tidal notches in tectonically stable coasts of the Mediterranean Sea. Earth Sci. Rev. 185, 600–623. https://doi.org/10.1016/j.earscirev.2018.06.017 (2018).
Vacchi, M. et al. Millennial variability of rates of sea-level rise in the ancient harbour of Naples (Italy, western Mediterranean Sea). Quat. Res. 93, 284–298. https://doi.org/10.1017/qua.2019.60 (2020).
Bini, M. et al. An end to the Last Interglacial highstand before 120 ka: Relative sea-level evidence from Infreschi Cave (Southern Italy). Quat. Sci. Rev. 250, 106658. https://doi.org/10.1016/j.quascirev.2020.106658 (2020).
Columbu, A. et al. Speleothem record attests to stable environmental conditions during Neanderthal–modern human turnover in southern Italy. Nat. Ecol. Evol. 4(9), 1188–1195. https://doi.org/10.1038/s41559-020-1243-1 (2020).
Lari, M. et al. The Neanderthal in the karst: first dating, morphometric, and paleogenetic data on the fossil skeleton from Altamura (Italy). J. Hum. Evol. 82, 88–94. https://doi.org/10.1016/j.jhevol.2015.02.007 (2015).
Benazzi, S. et al. Early dispersal of modern humans in Europe and implications for Neanderthal behaviour. Nature 479(7374), 525–528. https://doi.org/10.1038/nature10617 (2011).
Tarquini S., Isola I., Favalli M., & Battistini A. TINITALY, a digital elevation model of Italy with a 10 meters cell size (Version 1.0) . Istituto Nazionale di Geofisica e Vulcanologia (INGV). https://doi.org/10.13127/TINITALY/1.0 (2007).
Sardella, R. et al. Grotta Romanelli (Lecce, Southern Italy) between past and future: new studies and perspectives for an archaeo-geosite symbol of the Palaeolithic in Europe. Geoheritage 11(4), 1413–1432. https://doi.org/10.1007/s12371-019-00376-z (2019).
Forti, L., Mazzini, I., Mecozzi, B., Sigari, D. & Sardella, R. Grotta Romanelli (Castro, Lecce): un sito chiave del Quaternario mediterraneo. Geologicamente 2, 18–27 (2020).
Cosentino, D. & Gliozzi, E. Considerazioni sulle velocità di sollevamento di depositi eutirreniani dell’Italia meridionale e della Sicilia. Mem. Soc. Geol. It. 41, 653–665 (1988).
Shennan, I. et al. (eds) Handbook of Sea-Level Research (Wiley, Chichester, 2015).
Mattei, G. et al. On the influence of vertical ground movements on Late-Quaternary sea-level records. A comprehensive assessment along the midTyrrhenian coast of Italy (Mediterranean Sea). Quat. Sci. Rev. 279, 107384 (2022).
Blanc, G. A. Grotta Romanelli I. Stratigrafia dei depositi e natura e origine di essi. Arch. Antropol. Etnol. 50, 1–39 (1920).
Blanc, G. A. Grotta Romanelli II. Dati ecologici e paletnologici. Arch. Antropol. Etnol. 58, 1–49 (1928).
Fornaca-Rinaldi, G. & Radmilli, A. M. Datazione con il metodo 230Th/238U di stalagmiti contenute in depositi musteriani. Atti Soc. Toscana Sci. Nat. 75(1), 639–646 (1968).
Alessio, M., Bella, F., Bachecchi, F. & Cortesi, C. University of Rome Carbon-14 dates III. Radiocarbon 7, 213–222 (1965).
Vogel, J. C. & Waterbolk, H. T. Groningen radiocarbon dates IV. Radiocarbon 5, 63–202 (1963).
Blanc, G. A. Sulla presenza di Alca impennis Linn. nella formazione superiore di Grotta Romanelli in Terra d’Otranto. Arch. Antropol. Etnol. 58, 155–186 (1927).
Di Stefano, G., Petronio, C., Sardella, R., Savelloni, V. & Squazzini, E. Nuove segnalazioni di brecce ossifere nella costa fra Castro Marina e Otranto (Lecce). Il Quaternario 5(1), 3–10 (1992).
Bologna, P. et al. Late Pleistocene mammals from the Melpignano (LE) “Ventarole”: Preliminary analysis and correlations. Boll. Soc. Paleont. It. 33(2), 265–274 (1994).
Spinapolice, E. E. Raw material economy in Salento (Apulia, Italy): New perspectives on Neanderthal mobility patterns. J. Archaeol. Sci. 39(3), 680–689 (2012).
Aureli, D. & Ronchitelli, A. The Lower Tyrrhenian Versant: Was it a techno-cultural area during the Middle Palaeolithic? Evolution of the lithic industries of the Riparo del Molare sequence in the frame of Neanderthal peopling dynamics in Italy. In Palaeolithic Italy: Advanced Studies on Early Human Adaptations in the Apennine Peninsula (eds. Borgia V. & Cristiani E.) 59–94 (Sidestone Press, Leiden, 2018).
Mecozzi, B. et al. New human fossil from the latest Pleistocene levels of Grotta Romanelli (Apulia, southern Italy). Archaeol. Anthropol. Sci. 14, 1–4. https://doi.org/10.1007/s12520-021-01491-1 (2022).
Sardella, R., Bertè, F. D., Iurino, D. A., Cherin, M. & Tagliacozzo, A. The wolf from Grotta Romanelli (Apulia, Italy) and its implications in the evolutionary history of Canis lupus in the Late Pleistocene of Southern Italy. Quat. Int. 328, 179–195. https://doi.org/10.1016/j.quaint.2013.11.016 (2014).
Pandolfi, L. et al. Rhinocerotidae (Mammalia, Perissodactyla) from the middle Pleistocene levels of Grotta Romanelli (Lecce, southern Italy). Geobios 51(5), 453–468. https://doi.org/10.1016/j.geobios.2018.08.008 (2018).
Calcagnile, L. et al. New radiocarbon dating results from the Upper Paleolithic–Mesolithic levels in Grotta Romanelli (Apulia, Southern Italy). Radiocarbon, Selected Papers from the 23rd International Radiocarbon Conference, Trondheim, Norway, 17– 22 June, 2018. https://doi.org/10.1017/RDC.2019.8 (2019).
Iannucci, A., Sardella, R., Strani, F. & Mecozzi, B. Size shifts in late Middle Pleistocene to Early Holocene Sus scrofa (Suidae, Mammalia) from Apulia (southern Italy): ecomorphological adaptations?. Hystrix 31(1), 10–20. https://doi.org/10.4404/hystrix-00258-2019 (2020).
Mecozzi, B. Meles meles from Middle Pleistocene to Early Holocene of the Italian Peninsula within the evolutionary of European badgers in the Quaternary. Paleontogr. Abt. A. https://doi.org/10.1127/pala/2021/0100 (2021).
Mecozzi, B. et al. Rediscovering Lutra lutra from Grotta Romanelli (southern Italy) in the framework of the puzzling evolutionary history of Eurasian otters. PalZ https://doi.org/10.1007/s12542-021-00553-y (2021).
Botti, U. Sulla scoperta di ossa fossili in Terra d’Otranto. Boll. Regio Com. Geol. 1, 7–8 (1874).
Tagliacozzo, A. Archeozoologia dei livelli dell’Epigravettiano finale di Grotta Romanelli (Castro, Lecce) strategie di caccia ed economia di sussistenza. In Grotta Romanelli Nel Centenario Della Sua Scoperta (1900–2000) (ed Fabri, P., E. Ingravallo, E. & Mangia, A.) 169–216 (Congedo Editore, Lecce, 2003).
Pandolfi, L. et al. Late Pleistocene last occurrences of the narrow-nosed rhinoceros Stephanorhinus hemitoechus (Mammalia, Perissodactyla) in Italy. Riv. It. Paleontol. Strat. 123(2), 177–192 (2017).
Pirazzoli, P. A. Marine notches. In Sea-level Research: A Manual for the Collection and Evaluation of Data (ed. Van de Plassche, O.) 361–400 (Norwich, GeoBooks, 1986).
Trenheil, A. Coastal notches: Their morphology, formation, and function. Earth Sci. Rev. 150, 285–304. https://doi.org/10.1016/j.earscirev.2015.08.003 (2015).
Trenheil, A. Modelling coastal notch morphology and developmental history in the Mediterranean. Geo. Res. J. 9, 77–90. https://doi.org/10.1016/j.grj.2016.09.003 (2016).
Ferranti, L. et al. Markers of the last interglacial sea-level high stand along the coast of Italy: Tectonic implications. Quat. Int. 145, 30–54. https://doi.org/10.1016/j.quaint.2005.07.009 (2006).
Rovere, A. et al. The analysis of Last Interglacial (MIS 5e) relative sea-level indicators: Reconstructing sea-level in a warmer world. Earth Sci. Rev. 159, 404–427 (2016).
Rovere, A., Stocchi, P. & Vacchi, M. Eustatic and relative sea level changes. Curr. Clim. Change Rep. 2, 221–231. https://doi.org/10.1007/s40641-016-0045-7 (2016).
Winkler, T. S., Van Hengstum, P. J., Horgan, M. C., Donnelly, J. P. & Reibenspies, J. H. Detrital cave sediments record Late Quaternary hydrologic and climatic variability in northwestern Florida, USA. Sediment. Geol. 335, 51–65. https://doi.org/10.1016/j.sedgeo.2016.01.022 (2016).
Angelucci, D. E. et al. A tale of two gorges: Late Quaternary site formation and surface dynamics in the Mula basin (Murcia, Spain). Quat. Int. 485, 4–22. https://doi.org/10.1016/j.quaint.2017.04.006 (2017).
Inglis, R. et al. Sediment micromorphology and site formation processes during the Middle to Later Stone Ages at the Haua Fteah Cave, Cyrenaica, Libya. Geoarchaeology 33(3), 328–348. https://doi.org/10.1002/gea.21660 (2018).
Russo Ermolli, E. et al. The pollen record from Grotta Romanelli (Apulia, Italy): New insight for the Late Pleistocene Mediterranean vegetation and plant use. Rev. Palaeobot. Palynol. 297, 104577. https://doi.org/10.1016/j.revpalbo.2021.104577 (2022).
Sigari, D. et al. New parietal engravings in the Romanelli cave (Apulia, southern Italy). Towards a systematic review. Antiquity 95(384), 1387–1404 (2021).
Cerrone, C., Vacchi, M., Fontana, A. & Rovere, A. Last Interglacial sea-level proxies in the Western Mediterranean. Earth Syst. Sci. Data https://doi.org/10.5194/essd-2021-49 (2021).
Guérin, C. Les rhinocéros (Mammalia, Perissodactyla) du Miocène terminal au Pléistocène supérieur en Europe occidentale. Comparaison avec les espèces actuelles (fascicule 1). Doc. lab. géol. Fac. sci. Lyon 79(1), 3–421 (1980).
Fortelius, M., Mazza, P. P. A. & Sala, B. Stephanorhinus (Mammalia: Rhinocerotidae) of the western European Pleistocene, with a revision of S. etruscus (Falconer, 1868). Palaeontogr. Italica 80(6), 63–155 (1993).
Lacombat, F. Les rhinocéros fossiles des sites préhistoriques de l’Europe méditerranéenne et du Massif Central. Paléontologie et implications bio-chronologiques. BAR Int. Ser, 1419 (2005).
Pandolfi, L., Gaeta, M. & Petronio, C. The skull of Stephanorhinus hemitoechus (Mammalia, Rhinocerotidae) from the Middle Pleistocene of Campagna Romana (Rome, central Italy): Biochronological and paleobiogeographic implications. Bull. Geosci. 88(1), 51–62 (2013).
Pandolfi, L. & Marra, F. Rhinocerotidae (Mammalia, Perissodactyla) from the chrono-stratigraphically constrained Pleistocene deposits of the urban area of Rome (Central Italy). Geobios 48(2), 147–167 (2015).
Pandolfi, L. & Petronio, C. A brief review of the occurrences of Pleistocene Hippopotamus (Mammalia, Hippopotamidae) in Italy. Geol. Croat. 68(3), 313 (2015).
Martino, R. & Pandolfi, L. The Quaternary Hippopotamus records from Italy. Hist. Biol. https://doi.org/10.1080/08912963.2021.1965138 (2021).
Braun, I. M. & Palombo, M. R. Mammuthus primigenius in the cave and portable art: An overview with a short account on the elephant fossil record in Southern Europe during the last glacial. Quat. Int. 276, 61–76 (2012).
Mecozzi, B. et al. A reappraisal of the Pleistocene mammals from the karst infilling deposits of the Maglie area (Lecce, Apulia, southern Italy). Riv. Ital. Paleontol. Strat. 127(2), 355–382. https://doi.org/10.13130/2039-4942/15776 (2021).
Sommer, R. S. Late Pleistocene and Holocene history of mammals in Europe. In Mammals of Europe-Past, Present, and Future, Handbook of the Mammals of Europe (eds Hackländer, K. & Zachos, F. E.) 83–98 (Springer, Switzerland, 2020). https://doi.org/10.1007/978-3-030-00281-7_3.
Piperno, M. L’industria musteriana su calcare di Grotta Romanelli (Otranto). Mem. Ist. Pal. Um. 2, 69–90 (1974).
Bosch, R. F. & White, W. B. Lithofacies and transport of clastic sediments in karstic aquifers. In Studies of Cave Sediments (eds Sasowsky, I. D. & Mylroie, J.) 1–22 (Springer, Boston, 2004).
Roebroeks, W. & Villa, P. On the earliest evidence for habitual use of fire in Europe. PNAS 108(13), 5209–5214. https://doi.org/10.1073/pnas.1018116108 (2011).
Sanz, M. et al. Early evidence of fire in south-western Europe: The Acheulean site of Gruta da Aroeira (Torres Novas, Portugal). Sci. Rep. 10(1), 1–15. https://doi.org/10.1038/s41598-020-68839-w (2020).
Mazza, P. P. A. et al. A new Palaeolithic discovery: Tar-hafted stone tools in a European Mid-Pleistocene bone-bearing bed. J. Archaeol. Sci. 33, 1310–1318 (2006).
Ronchitelli, A., Freguglia, M. & Boscato, P. Paléoécologie et stratégies de subsistance à l’Abri du Molare de Scario (S. Giovanni a Piro-Salerne-Italie du Sud): niveaux Paléolithique moyen 44–49, données préliminares. In Settlement dynamics of the Middle Palaeolithic and Middle Stone Age (eds Conard, N. J. & Delagnes, A.), Vol. 3, 249–264 (Tübingen, Kerns Verlag, 2010).
Goldberg, P. & Sherwood, S. C. Deciphering human prehistory through the geoarcheological study of cave sediments. Evol. Anthropol. 15(1), 20–36. https://doi.org/10.1002/evan.20094 (2006).
Karkanas, P. & Goldberg, P. Micromorphology of cave sediments. In Treatise on Geomorphology (eds John, F. et al.) 286–297 (Academic Press, San Diego, 2013).
Morley, M. W. et al. Hominin and animal activities in the microstratigraphic record from Denisova cave (Altai Mountains, Russia). Sci. Rep. 9, 13785. https://doi.org/10.1038/s41598-019-49930-3 (2019).
Stoops, G. Guidelines for Analysis and Description of Soil and Regolith Thin Sections (Soil Science Society of America, Madison, 2003).
Nicosia, C. & Stoops, G. Archaeological Soil and Sediment Micromorphology (Wiley, New York, 2017).
Shen, C. C. et al. Measurement of attogram quantities of 231Pa in dissolved and particulate fractions of seawater by isotope dilution thermal ionization mass spectroscopy. Anal. Chem. 75(5), 1075–1079. https://doi.org/10.1021/ac026247r (2003).
Shen, C. C. et al. High-precision and high-resolution carbonate 230Th dating by MC-ICP-MS with SEM protocols. Geochim. Cosmochim. Acta 99, 71–86. https://doi.org/10.1016/j.gca.2012.09.018 (2012).
Shen, C. C. et al. Variation of initial 230Th/232Th and limits of high precision U-Th dating of shallow-water corals. Geochim. Cosmochim. Acta 72(17), 4201–4223. https://doi.org/10.1016/j.gca.2008.06.011 (2008).
Shen, C. C. et al. Uranium and thorium isotopic and concentration measurements by magnetic sector inductively coupled plasma mass spectrometry. Chem. Geol. 185(3–4), 165–217. https://doi.org/10.1016/S0009-2541(01)00404-1 (2002).
Cheng, H. et al. Improvements in 230Th dating, 230Th and 234U half-life values, and U-Th isotopic measurements by multi-collector inductively coupled plasma mass spectrometry. Earth Planet. Sci. Lett. 371–372, 82–91. https://doi.org/10.1016/j.epsl.2013.04.006 (2013).
Mallol, C. & Goldberg, P. Cave and rock shelter sediments. In Archaeological Soil and Sediment Micromorphology (eds Nicosia, C. & Stoops, G.) 359–381 (Wiley, New York, 2017).
The authors are deeply indebted to the Soprintendenza Archeologia, Belle Arti e Paesaggio delle province di Brindisi e Lecce for the permission of the research and field activities (2015–2017 and 2018–2020, with extension for 2021 due to sanitary emergency by SARS-CoV-2, resp. R. Sardella) (Maria Piccarreta, Laura Masiello and Serena Strafella). We thank the Castro municipality, Capitanerie di Porto di Castro e di Otranto, Parco Naturale Regionale Costa Otranto S.M. di Leuca-Bosco di Tricase, Ninì Ciccarese and Toto De Santis, Michele Rizzo and the Red Coral team, Don Piero Frisullo and Genesareth for their logistical support. We also wish to thank all members of the Romanelli team and many students for helping during 2015-2021 fieldwork activities. Moreover, we are indebted to Luca Lanci (University of Urbino, Italy) and Evdokia Tema (University of Torino, Italy) for their useful comments to the early versions of the manuscript. This work was funded by Sapienza, University of Rome, with Finanziamento Ricerche di Ateneo 2015, Grandi Scavi 2016 (Grant no: SA116154CD9592F3); Grandi Scavi 2017 (Grant no: SA11715C81468801); Grandi Scavi 2018 (Grant no: SA1181642D3B3C58); Grandi Scavi 2019 (Grant no: SA11916B513E7C4B); Grandi Scavi 2020 (Grant no: SA120172B2C05E68); Grandi Scavi 2021 (Grant no:SA12117A87BC3F0A). The work was also funded by University of Torino with PIEP_ALTRI_18_01; PIEP_AUTOF_20_01; PIEP_RILO_19_01U-Th dating at the HISPEC was supported by grants from the Science Vanguard Research Program of the Ministry of Science and Technology (110-2123-M-002-009), the National Taiwan University (110L8907 to C.-C.S.), and the Higher Education Sprout Project of the Ministry of Education (110L901001 and 110L8907).
The authors declare no competing interests.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
About this article
Cite this article
Pieruccini, P., Forti, L., Mecozzi, B. et al. Stratigraphic reassessment of Grotta Romanelli sheds light on Middle-Late Pleistocene palaeoenvironments and human settling in the Mediterranean. Sci Rep 12, 13530 (2022). https://doi.org/10.1038/s41598-022-16906-9