Annals of the South African MuseumThe Museum, 1991 - Natural history |
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Page 29
... Upper Titho- nian of northern Moçambique , the Upper Valanginian of the Algoa Basin , A D B Fig . 15. A - C . LOWER CRETACEOUS TRIGONIOIDA FROM THE ALGOA BASIN 29.
... Upper Titho- nian of northern Moçambique , the Upper Valanginian of the Algoa Basin , A D B Fig . 15. A - C . LOWER CRETACEOUS TRIGONIOIDA FROM THE ALGOA BASIN 29.
Page 43
... Upper Valanginian faunas of south - east Africa . Family Iotrigoniidae Saveliev , 1958 ( nom . transl . herein ex subfamily Iotrigoniinae Saveliev , 1958 ) . Diagnosis Medium to large megatrigoniaceans ; pyriform to subovate ...
... Upper Valanginian faunas of south - east Africa . Family Iotrigoniidae Saveliev , 1958 ( nom . transl . herein ex subfamily Iotrigoniinae Saveliev , 1958 ) . Diagnosis Medium to large megatrigoniaceans ; pyriform to subovate ...
Page 51
... Upper Triassic and ? Lower Jurassic marine molluscs from New Guinea . Bulletin . Bureau of Mineral Resources , Geology and Geophysics , Australia 75 : 39–82 . SKWARKO , S. K. 1968. Lower Cretaceous Trigoniidae from Stanwell , eastern ...
... Upper Triassic and ? Lower Jurassic marine molluscs from New Guinea . Bulletin . Bureau of Mineral Resources , Geology and Geophysics , Australia 75 : 39–82 . SKWARKO , S. K. 1968. Lower Cretaceous Trigoniidae from Stanwell , eastern ...
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Common terms and phrases
Algoa Basin Anditrigonia antecarinal sulcus anterior commissure anterolateral shoulder anteroventrally Apiotrigoniinae Bivalvia broad chevrons coarse commissure comprises convex Cooper Cretaceous Description Shell Diagnosis elongate escutcheon carina faunas finely crenulated flank costae flank ornament genus growth rugae growth striae Hauterivian Hoepen holotype inflated anteriorly interspaces Iotrigonia irregular Kobayashi kraussi Kitchin lanceolate large maximum length Lateral view lectotype left valve longitudinal groove Megatrigoniacea moderately Myophorella Myophoriidae Nakano neotype nepionic stages Neumayr nodate Nototrigoniinae opisthogyrous beaks Paranditrigonia paratypes persisting to maturity phyletic Port Elizabeth Museum posterior set posterodorsal margin Poulton Pterotrigonia radial costellae radial ornament Rennie respiratory margin Reyes ribs right valve rostrate shallowly concave shell length Skwarko smooth South African Museum Steinmanella herzogi Goldfuss straight strongly oblique subconcentric subfamily Sundays River Superfamily synonymy Tashiro Tithonian transverse costellae transverse ornament Trigonia Trigoniacea Trigoniinae trigonioid tubercles Type species Upper Valanginian V-shaped Valanginian vau Sharpe ventral margin ventricosa Krauss Yaadia