Annals of the South African MuseumThe Museum, 1978 - Natual history |
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Page 190
... slightly and the whorl section changes from slightly depressed to almost quadrate . At this stage the lirae are visible to the naked eye ; they arise at the umbilical seam and pass forwards ( prorsiradiate ) on the lower third of the ...
... slightly and the whorl section changes from slightly depressed to almost quadrate . At this stage the lirae are visible to the naked eye ; they arise at the umbilical seam and pass forwards ( prorsiradiate ) on the lower third of the ...
Page 219
... slightly compressed , oval . Ornament comprises slightly rursiradiate , strengthened , simple main ribs which bifurcate or trifurcate across the dorsum and are ornamented with dorsolateral and ventrolateral tubercles . Between main ribs ...
... slightly compressed , oval . Ornament comprises slightly rursiradiate , strengthened , simple main ribs which bifurcate or trifurcate across the dorsum and are ornamented with dorsolateral and ventrolateral tubercles . Between main ribs ...
Page 275
... slightly to the broad venter . There are 10 prominent , somewhat bullate umbilical tubercles per half- whorl , from which arise 1-2 rectiradiate to slightly rursiradiate ribs . Where single there is frequently an adjacent intercalated ...
... slightly to the broad venter . There are 10 prominent , somewhat bullate umbilical tubercles per half- whorl , from which arise 1-2 rectiradiate to slightly rursiradiate ribs . Where single there is frequently an adjacent intercalated ...
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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