Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . gnostica (Figs 71, 8D, 91, M, 10D, J, N, 11M) resembles Anchisaurus capensisin several features (Table 3) but differs in three important respects, viz. theilium has a short triangular anterior process (Fig. 10D), the subacetabularpart of the pubis is deep with a complete obturator foramen (Fig. 10J, N), andthe bases of the neural spines of the anterior caudal vertebrae are narrow(Fig. 9R). Genus Thecodontosaurus Riley & Stutchbury, 1836Diagnosis At least 21 dentary teeth (in holotype, Fig. 9B); from referred specimens
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . gnostica (Figs 71, 8D, 91, M, 10D, J, N, 11M) resembles Anchisaurus capensisin several features (Table 3) but differs in three important respects, viz. theilium has a short triangular anterior process (Fig. 10D), the subacetabularpart of the pubis is deep with a complete obturator foramen (Fig. 10J, N), andthe bases of the neural spines of the anterior caudal vertebrae are narrow(Fig. 9R). Genus Thecodontosaurus Riley & Stutchbury, 1836Diagnosis At least 21 dentary teeth (in holotype, Fig. 9B); from referred specimenswithout teeth diagnosis tentatively expanded as follows: elongate basiptery-goid processes, cervical vertebrae proportionally short compared with otheranchisaurids, high centra to dorsal vertebrae, narrow base to neural spines ofanterior and caudal vertebrae, high placed deltopectoral crest on proximalthird of humerus, manus with slender metacarpal I and digits II and III subequalin length, short triangular anterior process to ilium. ANNALS OF THE SOUTH AFRICAN MUSEUM. ANCHISAURUS CAPENSIS (BROOM) AND A REVISION OF THE ANCHISAURIDAE 139 Thecodontosaurus antiquus Morris Thecodontosaurus Riley & Stutchbury, 1836: 398; 1840: 352, pi. 29 (figs 1-2).Thecodontosaurus antiquus Morris, 1843: 211. Type Incomplete dentary with teeth from the Magnesian Conglomerate (UpperTriassic) near Bristol, England. Diagnosis As for genus. Discussion Riley & Stutchbury (1836, 1840) did not give a specific name for Theco-dontosaurus and this oversight was rectified by the proposal of T. antiquusMorris, 1843. Thecodontosaurus was the first genus of prosauropod to be describedso it is unfortunate that there is no articulated association between teeth ofthe type and the postcranial material referred to the genus by Seeley (1895a)and Huene (1907-8, 19146). Indeed, the only articulated bones referred toThecodontosaurus are a few short sequences of vertebrae (Huene 1907-8:figs 214, 218-220) and a fore limb w
Size: 1274px × 1962px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
