Annals of the South African MuseumThe Museum, 1991 - Natural history |
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Page 2
... Cooper 1979a ) . This fauna was last revised as a group in 1908 , when only the genus Trigonia was recog- nized , and it is now in need of modern revision . This is all the more desirable given the major changes in trigonioid ...
... Cooper 1979a ) . This fauna was last revised as a group in 1908 , when only the genus Trigonia was recog- nized , and it is now in need of modern revision . This is all the more desirable given the major changes in trigonioid ...
Page 13
... Cooper , 1979 Fig . 5 Myophorella ( Myophorella ) oosthuizeni Cooper , 1979a : 22 , fig . 1 . Types The holotype , SAM - PCU5941 ( RO - 300 ) , together with four paratypes , all of which are in the South African Museum , Cape Town , as ...
... Cooper , 1979 Fig . 5 Myophorella ( Myophorella ) oosthuizeni Cooper , 1979a : 22 , fig . 1 . Types The holotype , SAM - PCU5941 ( RO - 300 ) , together with four paratypes , all of which are in the South African Museum , Cape Town , as ...
Page 33
... Cooper , 1979b : 55 . Types The holotype is in the Port Elizabeth Museum ( Figs 17-18 ) . There are two paratypes in the British Museum ( Natural History ) , and a third in the Natal Museum ( Pietermaritzburg ) . The whereabouts of two ...
... Cooper , 1979b : 55 . Types The holotype is in the Port Elizabeth Museum ( Figs 17-18 ) . There are two paratypes in the British Museum ( Natural History ) , and a third in the Natal Museum ( Pietermaritzburg ) . The whereabouts of two ...
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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