Annals of the South African MuseumThe Museum, 1991 - Natural history |
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South African Museum. faunal replenishment . As a result , although there are general similarities between the trigonioid faunas of different regions , species are almost invariably endemic and are descended from and most closely related ...
South African Museum. faunal replenishment . As a result , although there are general similarities between the trigonioid faunas of different regions , species are almost invariably endemic and are descended from and most closely related ...
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... fauna of Cutch . The Lamellibranchiata . Genus Trigonia . Memoirs of the Geological Survey of India . Palaeontologica indica ( 9 ) 3 ( 2 ) : 1–122 . KITCHIN , F. L. 1908. The invertebrate fauna and palaeontological relations of the ...
... fauna of Cutch . The Lamellibranchiata . Genus Trigonia . Memoirs of the Geological Survey of India . Palaeontologica indica ( 9 ) 3 ( 2 ) : 1–122 . KITCHIN , F. L. 1908. The invertebrate fauna and palaeontological relations of the ...
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... fauna de Trigonias de Aisen . Boletin . Instituto de Investigaciones Geo- lógicas , Chile 26 : 5-40 . REYES , B. , R ... faunas from southern India . III . The Pelecypoda , with a review of all known genera of this class , fossil and ...
... fauna de Trigonias de Aisen . Boletin . Instituto de Investigaciones Geo- lógicas , Chile 26 : 5-40 . REYES , B. , R ... faunas from southern India . III . The Pelecypoda , with a review of all known genera of this class , fossil and ...
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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