Annals of the South African Museum, Volume 31South African Museum, 1950 - Natual history |
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Page 182
... groove at its lowest part , to meet the ectopterygoidal suture . According to this interpretation , the pterygoids are ventrally excluded from the posterior borders of the internal nares ; whereas , according to Watson , the pterygoids ...
... groove at its lowest part , to meet the ectopterygoidal suture . According to this interpretation , the pterygoids are ventrally excluded from the posterior borders of the internal nares ; whereas , according to Watson , the pterygoids ...
Page 371
... groove ; near the umbones the groove divides the area into two nearly equal flattened or slightly convex bends ; traced posteriorly the upper and lower limits of the area are ill - defined , but the longitudinal groove persists for the ...
... groove ; near the umbones the groove divides the area into two nearly equal flattened or slightly convex bends ; traced posteriorly the upper and lower limits of the area are ill - defined , but the longitudinal groove persists for the ...
Page 373
... groove continued for about 30 mm . from the umbo in the adult . In the right valve there is a very elevated anterior ... grooves . Anterior tooth supported by a broad convex internal rib , which is continued ventrally for a short ...
... groove continued for about 30 mm . from the umbo in the adult . In the right valve there is a very elevated anterior ... grooves . Anterior tooth supported by a broad convex internal rib , which is continued ventrally for a short ...
Contents
II | 5 |
Pareiasaurian skulls IV V Pareiasaur teeth | 8 |
Bradysaurus baini | 18 |
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Aelurognathus Agulhas Bank Albian anteriorly Anthodon appear B.Oc B.Sph basioccipital basisphenoid beds bone Bradysaurus brain-case Broom canine Cape Province centrum cervicals collected concave convex costae Cretaceous Cynodonts dental formula described distal ectopterygoids epipterygoid fenestra ovalis figured flank forms fossils genera genotype genus glauconite Gorgonops Gorgonopsians groove Haughton Hipposaurus Hoepen holotype incisors intercentrum Interorbital Kitchin Krauss L. W. Collet Lateral view Length from premaxilla lower jaw Lycaenops maxilla median Mfongosi microdon molars narrow Neocomian nodules occiput orbit ornamented P.Orb palate palatines Pareiasaurus parietal paroccipital phosphate pineal foramen plate Pongola Pongola River posterior border posteriorly premaxilla preserved prevomers pro-otic Pter pterygoid pterygoid flanges quadrate ribs ridge shells side skull snout South African Museum species specimens squamosal structure surface suture teeth TEXT-FIG Therapsids Therocephalians tigriceps transverse Trigonia tubera Uitenhage umbo upper vacuity valve ventral margin Ventral view vertebrae Watson Whaitsids width zone Zululand