Annals of the South African MuseumThe Museum, 1991 - Natural history |
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Page 7
... specimens were examined : SAM - 4646 , D1876 ( 2 specimens ) , D1881-82 , D1893 ( 9 specimens ) , D1896 , D1932 and D1973 ( 2 specimens ) , as well as 4 unnumbered specimens also in the South African Museum collections . Description ...
... specimens were examined : SAM - 4646 , D1876 ( 2 specimens ) , D1881-82 , D1893 ( 9 specimens ) , D1896 , D1932 and D1973 ( 2 specimens ) , as well as 4 unnumbered specimens also in the South African Museum collections . Description ...
Page 19
... specimens in the South African Museum , SAM - 4416 , 4994 , 5035-36 , 7498 , 7520 , D164 , D1840 , D1881 , D1892 ( 13 specimens ) , D1911 ( 40 specimens ) , D1914 , D1916 , D1940 ( 3 specimens ) , D2541 and 41 specimens without number ...
... specimens in the South African Museum , SAM - 4416 , 4994 , 5035-36 , 7498 , 7520 , D164 , D1840 , D1881 , D1892 ( 13 specimens ) , D1911 ( 40 specimens ) , D1914 , D1916 , D1940 ( 3 specimens ) , D2541 and 41 specimens without number ...
Page 29
... specimens ) , D1991 , and 12 unnumbered specimens , as well as 5 in the Port Elizabeth Museum , PEM - 1464 / 72 , 1463/51 and 3 unnum- bered specimens . Description Shell very large ( maximum length about 165 mm ) , massive , pyriform ...
... specimens ) , D1991 , and 12 unnumbered specimens , as well as 5 in the Port Elizabeth Museum , PEM - 1464 / 72 , 1463/51 and 3 unnum- bered specimens . Description Shell very large ( maximum length about 165 mm ) , massive , pyriform ...
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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