Annals of the South African Museum, Volume 73The Museum, 1977 - Natual history |
From inside the book
Results 1-3 of 34
Page 268
... Ornament on the early whorls consists of delicate , thin ribs , separated by wider interspaces . The ribs are straight to sinuous on the flanks and cross the dorsum and venter with a forward curvature . Rib density is c . 100 at a ...
... Ornament on the early whorls consists of delicate , thin ribs , separated by wider interspaces . The ribs are straight to sinuous on the flanks and cross the dorsum and venter with a forward curvature . Rib density is c . 100 at a ...
Page 318
... ornament consists of single , simple ribs , slightly prorsiradiate and separated by interspaces of similar width ... Ornament remains more or less constant up to the sharply recurved crozier . In the bend of the crozier more intercalated ...
... ornament consists of single , simple ribs , slightly prorsiradiate and separated by interspaces of similar width ... Ornament remains more or less constant up to the sharply recurved crozier . In the bend of the crozier more intercalated ...
Page 342
... ornament over the venter . Ornament consists of major trituberculate ribs , separated by one to three narrower intermediaries . The umbilical tubercles are smallest , and virtually absent at the smallest diameters visible . The ...
... ornament over the venter . Ornament consists of major trituberculate ribs , separated by one to three narrower intermediaries . The umbilical tubercles are smallest , and virtually absent at the smallest diameters visible . The ...
Other editions - View all
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