Extended Data Fig. 2: Skull and interpretive drawings of C. wahkarmoosuch UMNH VP 16771. | Nature

Extended Data Fig. 2: Skull and interpretive drawings of C. wahkarmoosuch UMNH VP 16771.

From: Late-surviving stem mammal links the lowermost Cretaceous of North America and Gondwana

Extended Data Fig. 2

a, b, Specimen shown in dorsal (a) and ventral (b) views. Grey areas represent matrix infill, hatched areas represent crushed/desiccated bones, dashed lines represent cracks through the specimen. c, Stereopair of the left side of skull in ventral view to show broad, shallow squamosal glenoid. as, alisphenoid (epipterygoid); bs, basisphenoid; C, upper canine alveolus; e n, external naris; f, frontal; f alt, anterior lateral trough foramen (cavum epiptericum ventral opening); f i, incisive foramen; f l, lacrimal foramen; f m-pal, maxillopalatine foramen; f pl, perilymphatic groove/foramen; f pt-par, pterygoparoccipital foramen; g, squamosal glenoid; I3, second upper incisor alveolus; j, jugal; l, lacrimal; m, maxilla; n, nasal; o, occipital; p, parietal; pal, palatine; PC4, in situ posterior upper postcanine (molar); pe, petrosal; pm, premaxilla; pt, pterygoid; sq, squamosal; v, vomer.

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