Annals of the South African Museum, Volume 110The Museum, 2003 - Natural history |
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Page 125
From the inner ventrolateral tubercles the ribs project forwards to connect with outer ventrolateral tubercles close to the siphonal line and are weakly joined across the venter . There is a multiplicity of outer ventrolateral tubercles ...
From the inner ventrolateral tubercles the ribs project forwards to connect with outer ventrolateral tubercles close to the siphonal line and are weakly joined across the venter . There is a multiplicity of outer ventrolateral tubercles ...
Page 126
Ribs terminate at the ventrolateral shoulder in the swollen bases of hollow horns . At this growth stage intercalatories are lacking and ribbing does not cross the venter . There is a row of small nodate to weakly clavate outer ...
Ribs terminate at the ventrolateral shoulder in the swollen bases of hollow horns . At this growth stage intercalatories are lacking and ribbing does not cross the venter . There is a row of small nodate to weakly clavate outer ...
Page 128
1 ) ) also lacks ventrolateral horns and has straighter flank costae at comparable diameters ; moreover , no mention is made of the multiplicity of outer ventrolateral tubercles which is a feature of the present species .
1 ) ) also lacks ventrolateral horns and has straighter flank costae at comparable diameters ; moreover , no mention is made of the multiplicity of outer ventrolateral tubercles which is a feature of the present species .
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Common terms and phrases
ammonites Angola Annals anterior arch archosaurs articulates base become BMNH body chamber Broom Campanian Cape caudal vertebrae closely Cobban coiling collections Collignon complete compressed Coniacian consists constrictions Cooper Cretaceous cylindraceum described Description diameter differs Diplomoceras Discussion distal dorsal early edge elements Erythrosuchus africanus Eubostrychoceras example fauna Figure flanks fossils fragments genus Geological Gower History holotype Howarth incomplete Kennedy Klinger known KwaZulu Lateral view LIBRARY locality lower Maastrichtian Madagascar material Matsumoto maxilla medial Middle narrow Natural occurrence original ornament Paleontology phragmocone position possibly posterior present preserved probably proximal referred represented ribs rounded Santonian shaft shell shows similar single skull slightly Society South African Museum Spath species specimens St Lucia Formation suggests surface suture text-fig tubercles Turonian Type species umbilical Upper Upper Cretaceous venter ventral ventrolateral vertebrae whorl whorl section