Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
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Page 230
... tubercles appear to be most prominent , and appear as low , rounded bosses , covering one to three ribs . The bosses probably indicate the former presence of long spines , with a basal septum . The lateral tubercles are smaller and more ...
... tubercles appear to be most prominent , and appear as low , rounded bosses , covering one to three ribs . The bosses probably indicate the former presence of long spines , with a basal septum . The lateral tubercles are smaller and more ...
Page 237
... tubercles disappear at a whorl breadth of around 23 mm . At this stage , ribs now arise in two's , three's and four's from the remaining , but weakened , umbilical tubercles . On the holotype , umbilical tubercles are still visible at a ...
... tubercles disappear at a whorl breadth of around 23 mm . At this stage , ribs now arise in two's , three's and four's from the remaining , but weakened , umbilical tubercles . On the holotype , umbilical tubercles are still visible at a ...
Page 341
... tubercles , separated by one to three intermediaries . Lateral tubercles situated on the ventral third of the flanks are developed only on one side , due to injury . Ventral tubercles are variably developed on the inter- mediaries ...
... tubercles , separated by one to three intermediaries . Lateral tubercles situated on the ventral third of the flanks are developed only on one side , due to injury . Ventral tubercles are variably developed on the inter- mediaries ...
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Common terms and phrases
abbreviations adcauline adnate Africa Albian Allman Ammonites Ammonoidea Amphipoda Ancyloceras Adouliceras aperture Aptian Australiceras author's name authors bicuspidata BMNH body chamber cala Cape Town Casey Cenomanian coiling Collignon constrictions Cretaceous Crioceras crozier described Description distal dorsal dorsum Eoxenopoides reuningi fauna figures flanks fossil frogs Gastropoda genus geol gonothecae H. L. Clark Haughton Helicancyloceras Hoepen holotype hydrocladia hydroids hydrothecae indra internode italics Kerguelen Kossmat Late Santonian lateral Lectotype length lobe locality Lower Aptian Maastrichtian material metres Millard Mozambique nematothecae occur ornament paratypes Pedicel phragmocone pipids Pondoland Pseudophyllites references ribs rounded Saghalinites Santonian Santonian to early scientific name segments separated Sertularella shaft shoulder Sinzow South African Museum southern Spath species specimens spines Stechow stem subheadings subtimotheanus SUID-AFRIKAANSE MUSEUM suture Symplectoscyphus Synonymy Tetragonites text-fig Tonohamites Totton Toxoceratoides transverse Tropaeum tubercles Upper Aptian venter ventral vertebrae Vervoort Wb/Wh whorl section Wiedmann Xenopus Zool Zululand Zygophylax