Annals of the South African Museum, Volume 80The Museum, 1980 - Natural history |
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Page 13
... ornament and apparently lacks , or has very few , bifurcating ribs on the outer whorls . P. ( P. ) planatus ( Lasswitz ) has much coarser ornament throughout . In P. ( P. ) shoshonensis ( Meek ) , as in P. ( P. ) bourgeoisi , the ...
... ornament and apparently lacks , or has very few , bifurcating ribs on the outer whorls . P. ( P. ) planatus ( Lasswitz ) has much coarser ornament throughout . In P. ( P. ) shoshonensis ( Meek ) , as in P. ( P. ) bourgeoisi , the ...
Page 66
... ornament . Clearly this presents difficulties when dealing with incomplete material , as Matsumoto ( 1970 : 276 ) ... ornament . With the development of the lateral tubercle , the ornament is like that of Texanites s.s. In P. schlueteri ...
... ornament . Clearly this presents difficulties when dealing with incomplete material , as Matsumoto ( 1970 : 276 ) ... ornament . With the development of the lateral tubercle , the ornament is like that of Texanites s.s. In P. schlueteri ...
Page 119
... ornament consists of a row of conical umbilical ( 1 ) tubercles connected by low , broad , prorsiradiate ribs to bullate , slightly spirally elongated ventrolateral ( 3 + 4 ) nodes . The venter is distinctly tricarinate , with the ...
... ornament consists of a row of conical umbilical ( 1 ) tubercles connected by low , broad , prorsiradiate ribs to bullate , slightly spirally elongated ventrolateral ( 3 + 4 ) nodes . The venter is distinctly tricarinate , with the ...
Contents
THE AMMONITE SUBFAMILY TEXANITINAE COLLIGNON | 2 |
Evolution and evolutionary trends in Texanitinae | 348 |
References | 354 |
Copyright | |
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Common terms and phrases
Africa Ammonites australis Besairie besairiei Bevahites bifurcations body chamber CALIFORN Campanian of Madagascar clavate Collignon 1948 Coniacian Cretaceous ERSITY external tubercles falloti False Bay flanks Gulf Coast higher than wide Hoepen Hokkaido holotype inner whorls jeanneti Kennedy & Klinger lateral keels lateral ornament lateral tubercle lobes Lower Campanian Lower Santonian marginal material Matsumoto 1970 Menabites Australiella Menabites Delawarella Middle Campanian Mortoniceras occur ontogeny outer whorls Parabevahites Paratexanites Paratexanites pseudotricarinatum sp Paratype phragmocone Plesiotexanites stangeri Baily Pondoland radially elongated Reginaites ribs Richards Bay row of tubercles SAN DIEGO soutoni natalense ssp Spath specimen figured St Lucia Formation stage stratigraphic subdelawarensis submarginal Submortoniceras woodsi suture suture line Texanites soutoni natalense Texanites soutoni soutoni texanitids Texanitinae texanus text-fig tonian Transkei trituberculate type species umbilical diameter umbilical tubercles umbilical wall umbilical width Umkwelane Hill Umzamba Formation umzambiense undulating keel Upper Santonian vanhoepeni venter ventrolateral tubercles whorl section Zululand Zululand specimens