Annals of the South African Museum, Volume 7South African Museum, 1913 - Natual history |
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Page 7
... dorsal processes ; reverse face flat or concave ; zoĆcia three or four in a lateral series , im- mersed but the boundaries are clearly marked ; the distance between the different series of apertures is one and a half to two and a half ...
... dorsal processes ; reverse face flat or concave ; zoĆcia three or four in a lateral series , im- mersed but the boundaries are clearly marked ; the distance between the different series of apertures is one and a half to two and a half ...
Page 13
... very slightly or not at all crenulate ) , with a large areola , and a few small tubercles . and granules around the margin . The primary tubercles are largest at the ambitus , and smaller on the dorsal surface ( 13 )
... very slightly or not at all crenulate ) , with a large areola , and a few small tubercles . and granules around the margin . The primary tubercles are largest at the ambitus , and smaller on the dorsal surface ( 13 )
Page 14
South African Museum. at the ambitus , and smaller on the dorsal surface and on the base of the test . Interambulacral plates high , each bearing a large primary , imper- forate , slightly crenulate tubercle with an areola of moderate ...
South African Museum. at the ambitus , and smaller on the dorsal surface and on the base of the test . Interambulacral plates high , each bearing a large primary , imper- forate , slightly crenulate tubercle with an areola of moderate ...
Page 15
... 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 of Thecidea vermicularis ...
... 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 of Thecidea vermicularis ...
Page 16
South African Museum. The dorsal valve is oval , slightly convex , with the umbo near the margin . The internal margin is ornamented with ridges . From the median septum one or sometimes more branches come off on each side . Several ...
South African Museum. The dorsal valve is oval , slightly convex , with the umbo near the margin . The internal margin is ornamented with ridges . From the median septum one or sometimes more branches come off on each side . Several ...
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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