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 196
... mainly by differences in size and , where preserved , in apertural modifications . This would correspond more or less to Type II dimorphism of Houša ( 1965 ) , where the sexes differ not only in size , but where the male has apertural ...
... mainly by differences in size and , where preserved , in apertural modifications . This would correspond more or less to Type II dimorphism of Houša ( 1965 ) , where the sexes differ not only in size , but where the male has apertural ...
Page 200
... mainly for the sake of taxonomic ' neatness ' . Within this systematic framework it is now possible to look at the strati- graphic and geographic distribution of the subfamily Labeceratinae . DISTRIBUTION Records of Labeceras from the ...
... mainly for the sake of taxonomic ' neatness ' . Within this systematic framework it is now possible to look at the strati- graphic and geographic distribution of the subfamily Labeceratinae . DISTRIBUTION Records of Labeceras from the ...
Page 204
... mainly due to a combination of taphonomy , differential preservation and systematics . Complete specimens of Myloceras and Labeceras are rare , and most descriptions are based on incomplete material . To this must be added the effects ...
... mainly due to a combination of taphonomy , differential preservation and systematics . Complete specimens of Myloceras and Labeceras are rare , and most descriptions are based on incomplete material . To this must be added the effects ...
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Common terms and phrases
abbreviated Africa-Madagascar and Australia Albian of Zululand AMMONITE Ancyloceratinae Angola Angola Basin Austral Basin Baculites Besairié 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