Annals of the South African MuseumThe Museum, 1978 - Natual history |
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Page 210
... compressed . Description Up to 13 mm whorl - width : at this stage , the shell is coiled in a loose planispire , and has a slightly depressed to circular cross - section . Ornament comprises fine , slightly rursiradiate ribs , about as ...
... compressed . Description Up to 13 mm whorl - width : at this stage , the shell is coiled in a loose planispire , and has a slightly depressed to circular cross - section . Ornament comprises fine , slightly rursiradiate ribs , about as ...
Page 235
... compressed , moderately involute , with about 60 per cent of the preceding whorl covered by the outer whorl . The umbilicus is moderately narrow ( 22 % of the diameter ) , with steep umbilical walls and evenly rounded umbilical ...
... compressed , moderately involute , with about 60 per cent of the preceding whorl covered by the outer whorl . The umbilicus is moderately narrow ( 22 % of the diameter ) , with steep umbilical walls and evenly rounded umbilical ...
Page 264
... compressed Mantelliceras and Utaturiceras lies close to Stoliczkaia of tenuis type . The writers would also point to the close similarity of compressed variants to juvenile Forbesiceras ( see Juignet & Kennedy 1977 ) , generally ...
... compressed Mantelliceras and Utaturiceras lies close to Stoliczkaia of tenuis type . The writers would also point to the close similarity of compressed variants to juvenile Forbesiceras ( see Juignet & Kennedy 1977 ) , generally ...
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Common terms and phrases
abbreviation Aconeceras Africa Albian Alopecoceras Ammonites Angola Anisoceras Aptian authors BMNH body chamber Borissiakoceras Breistroffer Burchell's zebra burchelli Cape Town Casey Cenomanian Cobban Collected Collignon comma compressed Cretaceous diameter distal dorsal endopod Equus quagga exopod False Bay fauna female colonies figures flank genus geol Hamites Holotype Hysteroceras Igoda Formation Infertile colony K. H. Barnard Kennedy Klinger Kunene kunenensis Lateral view lobe Locality Mariella material Maxilla Maxilliped Millard Mortoniceras Durnovarites Natal Okavango ornament paratypes pereonite Pereopod perinflatum Pervinquière PF station Pictet & Campiche plains zebras pleonites Pleopod Plioplateia references Renz ribs River Sanmartinoceras Sanmartinoceras scientific name segment setae shell shoulder Sinzovia South African Museum southern Sowerby Spath specimens spines Stoliczkaia stripes subgenus subspecies suture Synonymy telson Tetragonites text-fig Theganeceras Therocephalia Type species umbilical umbilicus University of Cape Upper Albian uppermost Albian uropod USNMNH venter ventral ventrolateral tubercles whole mount whorl section Zambezi Zululand