Annals of the South African Museum, Volume 110The Museum, 2003 - Natural history |
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Page 223
... Ornament consists of simple ribs , in some with intercalated flared ribs at some stage or other . Tubercles generally absent . Discussion Two subgenera are here referred to Eubostrychoceras , E. ( Eubostrychoceras ) and E. ( Amapondella ) ...
... Ornament consists of simple ribs , in some with intercalated flared ribs at some stage or other . Tubercles generally absent . Discussion Two subgenera are here referred to Eubostrychoceras , E. ( Eubostrychoceras ) and E. ( Amapondella ) ...
Page 287
... Ornament on the phragmocone consists of low , dense ribbing and two large , but weakly developed and irregularly spaced rows of tubercles — one just below the siphuncle and the other near the abapical part of the whorl . Ornament ...
... Ornament on the phragmocone consists of low , dense ribbing and two large , but weakly developed and irregularly spaced rows of tubercles — one just below the siphuncle and the other near the abapical part of the whorl . Ornament ...
Page 295
... ornament is sufficiently different to distinguish between these . D. ( D. ) donezianum ( Mikhailov , 1951 ) , recently reviewed by Kennedy & Cobban ( 1993c : 137 ) has loose coiling in the early stages , but the body chamber becomes ...
... ornament is sufficiently different to distinguish between these . D. ( D. ) donezianum ( Mikhailov , 1951 ) , recently reviewed by Kennedy & Cobban ( 1993c : 137 ) has loose coiling in the early stages , but the body chamber becomes ...
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ammonites Angola Annals archosaurs articulates Baculites Berkeley BMNH body chamber Campanian Cape Town caudal vertebrae centrum Charig coiling compressed Coniacian constrictions Cooper Cretaceous ammonites Damesites dentary diameter Didymoceras Diplomoceras Diplomoceras cylindraceum Defrance dorsal edge Erythrosuchus africanus Broom Eubostrychoceras fauna fenestra Figure flanks foramen fossils fragments gardeni Baily Garjainia genus Geological Géologique Gisement Glyptoxoceras Hauericeras holotype Howarth Huene Hyatt Hypophylloceras incomplete intercentra internal moulds Jimbo kaffrarium Kennedy & Cobban Klinger & Kennedy Kossmat Kossmaticeras KwaZulu Lateral view locality lower Campanian Maastrichtian Madagascar material Matsumoto maxilla medial views Mesopuzosia Morrowites Neocrioceras Neoglyptoxoceras Nostoceras Nostoceras Bostrychoceras Ochev ornament Paleontology phragmocone Placenticeras posterior posteriorly posteroventral premaxilla Prionocycloceras proterosuchids ribs Santonian São Nicolau shaft skull roof South African Museum Spath specimens St Lucia Formation Stoliczka Superfamily suture Tetragonites Texanites text-fig Turonian Type species umbilicus UNIVERSITY OF CALIFORNIA Upper Cretaceous venter ventral views ventrolateral tubercles whorl height whorl section