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Anatomical features of the Early Cambrian mollusc-like organism Vetustovermis planus Glaessner 1979. (a) dorsal view; (b) reconstructed cross section. Abbreviations (also used in figures 2 and 3): A, anus; B, buccal mass and stomach; D, diverticula; Da, dorsal aorta; E, eye; F, foot; Fn, fin; G, gills; H, head; I, intestine; M, mantle; O, outer margin of foot; P, spine-like structure; T, cephalic tentacles.
