Annals of the South African Museum, Volume 80The Museum, 1980 - Natural history |
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Page 63
... radially elongated , thus differing from Schlüter's illustration ( 1876 , pl . 42 ( figs 8-10 ) ) . Matsumoto ( 1970 ) recently discussed the scope of this species , pointing out that it is not well defined . One of the specimens ...
... radially elongated , thus differing from Schlüter's illustration ( 1876 , pl . 42 ( figs 8-10 ) ) . Matsumoto ( 1970 ) recently discussed the scope of this species , pointing out that it is not well defined . One of the specimens ...
Page 129
... radial to slightly rursiradiate single ribs , each bearing a rounded to radially elongated umbilical ( 1 ) tubercle , displaced slightly ventrally from the umbilical edge , a prominent radially elongated ,. Fig . 97. Texanites collignoni ...
... radial to slightly rursiradiate single ribs , each bearing a rounded to radially elongated umbilical ( 1 ) tubercle , displaced slightly ventrally from the umbilical edge , a prominent radially elongated ,. Fig . 97. Texanites collignoni ...
Page 164
... radially elongated , pointing slightly inwards . The lateral ( 2 ) tubercles are conical on the inner whorls , but become prominently elongated in the direction of the ribs in later whorls . The sub- marginal ( 3 ) tubercles are conical ...
... radially elongated , pointing slightly inwards . The lateral ( 2 ) tubercles are conical on the inner whorls , but become prominently elongated in the direction of the ribs in later whorls . The sub- marginal ( 3 ) tubercles are conical ...
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