Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 7
... subtriangular in cross - section and flat on the reverse side ; the zoĆcia are immersed with their boundaries apparent ; apertures two or three in a lateral series ; those of Polyzoa and Anthozoa from Upper Cretaceous Limestone . 7.
... subtriangular in cross - section and flat on the reverse side ; the zoĆcia are immersed with their boundaries apparent ; apertures two or three in a lateral series ; those of Polyzoa and Anthozoa from Upper Cretaceous Limestone . 7.
Page 15
... side ( D ) and from the dorsal surface ( G ) ; E , F , two dorsal valves . All x 3 . The thin median septum is joined by a short branch on each side near the cardinal margin . This valve is deeper and less curved than in most examples ...
... side ( D ) and from the dorsal surface ( G ) ; E , F , two dorsal valves . All x 3 . The thin median septum is joined by a short branch on each side near the cardinal margin . This valve is deeper and less curved than in most examples ...
Page 16
... side . Several examples of this species were found by Mr. Lang when searching for Polyzoa in the broken - up rock . LAMELLIBRANCHIA . OSTREA , sp . A small specimen of part of a left valve is probably an example of O. vesicularis ...
... side . Several examples of this species were found by Mr. Lang when searching for Polyzoa in the broken - up rock . LAMELLIBRANCHIA . OSTREA , sp . A small specimen of part of a left valve is probably an example of O. vesicularis ...
Page 20
... side are practically opposite , and so appear to form continuous bands across the zoarium . Distally is a front view of the right - hand series only , and those of the left - hand are seen in profile ( p . 412 ) . 7. Crisina marginata ...
... side are practically opposite , and so appear to form continuous bands across the zoarium . Distally is a front view of the right - hand series only , and those of the left - hand are seen in profile ( p . 412 ) . 7. Crisina marginata ...
Page 27
... side many molluscan types as of little signifi- cance in a comparative study , and concluded that a costate Trigonia ( T. tatei Neum . ) alone exhibited a marked Jurassic character . On the other hand , he considered a number of forms ...
... side many molluscan types as of little signifi- cance in a comparative study , and concluded that a costate Trigonia ( T. tatei Neum . ) alone exhibited a marked Jurassic character . On the other hand , he considered a number of forms ...
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Common terms and phrases
1st phalanx Ammonites angle aperture Aptian articular Astarte atherstoni Sharpe baini bank of Sunday's bone Broom carinal characters closely Coega collection comparison convex Cutch Cynodonts Cynognathus d'Orbigny Dicynodon differs distal dorsal dorsal fin elongated Exogyra fauna figured flank flattened fossils front frontal genus Geol Geological Graaff-Reinet greatest Gryponyx Hauterivian height herzogi Holcostephanus humerus imbricata Jurassic keel Krauss Left valve length Lower Cretaceous Lystrosaurus margin Massospondylus maxilla measures narrow Neocomian Neumayr occur Oomia ornamentation outline Pareiasaurus Pecten phalanx Plate portion posterior posteriorly preserved probably Propappus represented resemblance ribs ridges Right valve Rogers and Schwarz rogersi sculpture Seeley shell side similar skull slightly South African Museum species specimen Sunday's River surface suture Tate transverse Trigonia tubercles Uhlig Uitenhage Uitenhage beds Uitenhage Series uitenhagensis sp umbilical umbo umbonal region upper ventricosa W. T. Blanford whorl width zoarium Zwartkop's River