Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumWest, Newman & Company for the trustees of the Museum, 1989 - Natural history |
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Page 191
... forms with straight shaft , aperture parallel to shaft , very similar or identical to Myloceras , and can only be distin- guished by virtue of the lateral tubercles . 5. Ornament becomes subdued in later forms and umbilical tubercles ...
... forms with straight shaft , aperture parallel to shaft , very similar or identical to Myloceras , and can only be distin- guished by virtue of the lateral tubercles . 5. Ornament becomes subdued in later forms and umbilical tubercles ...
Page 198
... forms are generally larger than the more finely ornamented forms , but that the size overlap of these forms is virtually 1 : 1 . Size distribution patterns of L. crassetuberculatum , L. plasticum , L. rectum and Myloceras serotinum are ...
... forms are generally larger than the more finely ornamented forms , but that the size overlap of these forms is virtually 1 : 1 . Size distribution patterns of L. crassetuberculatum , L. plasticum , L. rectum and Myloceras serotinum are ...
Page 207
... forms can be compared . No forms similar to Myloceras gr . ex . besairiei or Labeceras gr . ex . rectum are known from Australia , i.e. comparisons are possible amongst strati- graphic early forms but not amongst the later , established ...
... forms can be compared . No forms similar to Myloceras gr . ex . besairiei or Labeceras gr . ex . rectum are known from Australia , i.e. comparisons are possible amongst strati- graphic early forms but not amongst the later , established ...
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Common terms and phrases
abbreviated Africa-Madagascar and Australia Albian of Zululand AMMONITE Ancyloceratinae Angola Angola Basin Austral Basin Baculites BesairiƩ besairiei Collignon Brazil-Angola Basin Cape Basin Cenomanian ceras climate Cobban coiling Collignon 1963 comma compressed whorl section crassicostatum Cretaceous CROZIER Estancia La Vega Etheridge F G H faunas figures Gastropoda genera Hamites heteromorph Holotype intraspecific Labe Labeceras and Myloceras Labeceras crassetuberculatum Klinger Labeceras gr Labeceras rectum Labeceras Spath Later forms lateral lappets Leanza Leda Madagascar material McNamara microconch Middle Albian Mozambique Mylo Myloceras bituberculatum sp Myloceras gr Myloceras rotundum Klinger Myloceras serotinum Spath onshore Ornament paratypes parentheses Patagonia phylogenetic PHYLOGENY punctuation recorded Reyment Roman numerals Samana Range Santa Cruz Province scaphitids scientific name Sketch of aperture Smith South African Museum South Atlantic southern India straight shaft strati stratigraphic range suggested Suture line Synonymy systematics type species umbilical tubercles Upper Albian venter Venzo Walvis Ridge Wiedmann & Dieni Wright