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
... tubercles . 5. Ornament becomes subdued in later forms and umbilical tubercles reduced . Myloceras 1. Decrease in overall size . 2. Lateral lobe ( L ) changes from asymmetric to symmetrically trifid . 3. Whorl section becomes more com ...
... tubercles . 5. Ornament becomes subdued in later forms and umbilical tubercles reduced . Myloceras 1. Decrease in overall size . 2. Lateral lobe ( L ) changes from asymmetric to symmetrically trifid . 3. Whorl section becomes more com ...
Page 203
... umbilical tubercles . 7. Mozambique . The original labeceratid material on which Spath's ( 1925 : 191 , et seq . ) descriptions were based , are probably from near Catuane in southern Mozambique - Förster's ( 1975 : 32 ) locality Lagoa ...
... umbilical tubercles . 7. Mozambique . The original labeceratid material on which Spath's ( 1925 : 191 , et seq . ) descriptions were based , are probably from near Catuane in southern Mozambique - Förster's ( 1975 : 32 ) locality Lagoa ...
Page 211
... tubercles of the preceding whorls slightly impressed in the dorsum of succeeding whorls . Umbilical width increases A B C D E F G H J Fig THE AMMONITE SUBFAMILY LABECERATINAE 211 Description of a new species.
... tubercles of the preceding whorls slightly impressed in the dorsum of succeeding whorls . Umbilical width increases A B C D E F G H J Fig THE AMMONITE SUBFAMILY LABECERATINAE 211 Description of a new species.
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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