Annals of the South African MuseumThe Museum, 1991 - Natural history |
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Page 9
... Kobayashi , 1954 ( nom . transl . herein ex subfamily Myophorellinae Kobayashi , 1954 ) Diagnosis Small to very large trigonioids , suborbicular to ovate , trigonal and subquad- rate ; strongly inequilateral ; posteriorly produced ...
... Kobayashi , 1954 ( nom . transl . herein ex subfamily Myophorellinae Kobayashi , 1954 ) Diagnosis Small to very large trigonioids , suborbicular to ovate , trigonal and subquad- rate ; strongly inequilateral ; posteriorly produced ...
Page 11
... Kobayashi , 1954 ( nom . transl . herein ex subfamily Myophorellinae Kobayashi , 1954 ) Diagnosis Myophorellaceans with generally conspicuously nodate flank costae that are subconcentric near the umbo , commonly becoming strongly ...
... Kobayashi , 1954 ( nom . transl . herein ex subfamily Myophorellinae Kobayashi , 1954 ) Diagnosis Myophorellaceans with generally conspicuously nodate flank costae that are subconcentric near the umbo , commonly becoming strongly ...
Page 49
... KOBAYASHI , T. 1954. Studies on the Jurassic trigonians in Japan . Part I. Preliminary notes . Japanese Journal of Geology and Geography 15 ( 1/2 ) : 61–80 . KOBAYASHI , T. & AMANO , M. 1955. On the Pseudoquadratae Trigonians ...
... KOBAYASHI , T. 1954. Studies on the Jurassic trigonians in Japan . Part I. Preliminary notes . Japanese Journal of Geology and Geography 15 ( 1/2 ) : 61–80 . KOBAYASHI , T. & AMANO , M. 1955. On the Pseudoquadratae Trigonians ...
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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