Annals of the South African Museum, Volume 110The Museum, 2003 - Natural history |
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Page 179
... phragmocone and body chamber in both Diplomoceras and Neoglyptoxoceras . It is well known that internal moulds of D. cylindraceum are generally smooth , whereas the same mode of preservation of the body chamber produces distinct ribbed ...
... phragmocone and body chamber in both Diplomoceras and Neoglyptoxoceras . It is well known that internal moulds of D. cylindraceum are generally smooth , whereas the same mode of preservation of the body chamber produces distinct ribbed ...
Page 244
... phragmocone is coiled in a tight helix . Coiling changes in the later part of the phragmocone and body chamber . Ornament generally consists of two rows of tubercles at some stage ; in some forms irregularly developed . Discussion In ...
... phragmocone is coiled in a tight helix . Coiling changes in the later part of the phragmocone and body chamber . Ornament generally consists of two rows of tubercles at some stage ; in some forms irregularly developed . Discussion In ...
Page 253
... phragmocone changes from depressed ( adapical - abapical ) to rounded to distinctly laterally ( dorsal - siphonal ) compressed . Coiling in the phragmocone is both sinistral and dextral . In most specimens the apical angle is very wide ...
... phragmocone changes from depressed ( adapical - abapical ) to rounded to distinctly laterally ( dorsal - siphonal ) compressed . Coiling in the phragmocone is both sinistral and dextral . In most specimens the apical angle is very wide ...
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Common terms and phrases
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