Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . Fig. 104. Texanites quadrangulatus CoUignon, 1966. SAS-A2580. X 0,58. Other than the umbilical and lateral ones throughout ontogeny, but especiallyon the inner whorls. Here the submarginal tubercles may be tremendouslyenlarged and partially fused to the marginal tubercles, having the appearanceof Paratexanites. The external (5) tubercles are very clavate and generally ashigh as, or higher than, the central keel. Bifurcations occur, but not the later part of the phragmocone and the body chamber, all
Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum . Fig. 104. Texanites quadrangulatus CoUignon, 1966. SAS-A2580. X 0,58. Other than the umbilical and lateral ones throughout ontogeny, but especiallyon the inner whorls. Here the submarginal tubercles may be tremendouslyenlarged and partially fused to the marginal tubercles, having the appearanceof Paratexanites. The external (5) tubercles are very clavate and generally ashigh as, or higher than, the central keel. Bifurcations occur, but not the later part of the phragmocone and the body chamber, all ornamentbecomes subdued (Fig. 104). 140 ANNALS OF THE SOUTH AFRICAN MUSEUM _^^%#%. Fig. 105. Texanites quadrangulatus CoWi&ion, 1966. SAS-A2580. X 0,58. CRETACEOUS FAUNAS FROM SOUTH AFRICA 141
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Keywords: ., bookcentury1800, bookdecade1890, booki, booksubjectnaturalhistory
