Annals of the South African MuseumThe Museum, 1991 - Natural history |
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Page 15
... Tashiro ( 1988 ) and Tashiro & Kano ( 1989 ) included Yeharella within the strict synonymy of Yaadia , it seems to be phyletically important and is here retained at the subgeneric level . Significantly , Tashiro & Kano ( 1989 , fig . 4 ) ...
... Tashiro ( 1988 ) and Tashiro & Kano ( 1989 ) included Yeharella within the strict synonymy of Yaadia , it seems to be phyletically important and is here retained at the subgeneric level . Significantly , Tashiro & Kano ( 1989 , fig . 4 ) ...
Page 26
... Tashiro ( 1979 ) , but from virtually the first appearance of the subfamily there are two dis- tinct phyletic lines ( cf. Tashiro 1979 , figs 17-18 ) . Skwarko ( 1970 ) , Nakano ( 1971 ) and Tashiro ( 1979 ) consider Trigonia calderoni ...
... Tashiro ( 1979 ) , but from virtually the first appearance of the subfamily there are two dis- tinct phyletic lines ( cf. Tashiro 1979 , figs 17-18 ) . Skwarko ( 1970 ) , Nakano ( 1971 ) and Tashiro ( 1979 ) consider Trigonia calderoni ...
Page 52
South African Museum. TASHIRO , M. & MATSUDA , T. 1986. A study of the Pterotrigoniae from Japan . II . Morphologi- cal changes . Memoirs of the Faculty of Science , Kochi University ( E , Geology ) 7 : 1–18 . TASHIRO , M. & Morozumi , Y ...
South African Museum. TASHIRO , M. & MATSUDA , T. 1986. A study of the Pterotrigoniae from Japan . II . Morphologi- cal changes . Memoirs of the Faculty of Science , Kochi University ( E , Geology ) 7 : 1–18 . TASHIRO , M. & Morozumi , Y ...
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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