Annals of the South African Museum, Volume 110The Museum, 2003 - Natural history |
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Page 135
... diameter . Gauthiericeras fauremuretae Collignon ( 1967 : 50 , pl . 28 ( fig . 10 ) ) may be a Prionocycloceras ; it ... diameter ) , with a fairly steep umbilical wall and evenly rounded umbilical shoulder . The flanks are broad and ...
... diameter . Gauthiericeras fauremuretae Collignon ( 1967 : 50 , pl . 28 ( fig . 10 ) ) may be a Prionocycloceras ; it ... diameter ) , with a fairly steep umbilical wall and evenly rounded umbilical shoulder . The flanks are broad and ...
Page 229
... diameter , is still less than half the diameter of the whorls . SAM - PCZ18709 ( Fig . 63F ) represents the earliest growth stage available , at a whorl diameter of 5 mm . Here , coiling is already distinctly helical , as in the later ...
... diameter , is still less than half the diameter of the whorls . SAM - PCZ18709 ( Fig . 63F ) represents the earliest growth stage available , at a whorl diameter of 5 mm . Here , coiling is already distinctly helical , as in the later ...
Page 253
... diameter of 25-30 mm . Three to four single ribs occur between these tubercles . In SAM - PCZ10499 ( Fig . 19A - B ) impressions of siphonal tubercles are still visible at a spiral diameter of 65 mm . On the next whorl , at a diameter ...
... diameter of 25-30 mm . Three to four single ribs occur between these tubercles . In SAM - PCZ10499 ( Fig . 19A - B ) impressions of siphonal tubercles are still visible at a spiral diameter of 65 mm . On the next whorl , at a diameter ...
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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