Extended Data Figure 5: U-shaped digestive tract of H. carinatus. | Nature

Extended Data Figure 5: U-shaped digestive tract of H. carinatus.

From: Hyoliths are Palaeozoic lophophorates

Extended Data Figure 5

a, b, Specimen ROM63982.1 from Stanley Glacier. a, Ventral view of the specimen, photographed wet with polarized light. b, Magnified image of the boxed area in a. c, Specimen ROM63984.1. Dorsal view of the specimen, photographed dry with polarized light. Scale bars, 1 mm (ac). Abbreviations: a, anus; ag, anal branch of the gut; og, oral branch of the gut; p, pharynx; t, tentacle; vo, visceral organ.

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