Annals of the South African Museum, Volume 80The Museum, 1980 - Natural history |
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Page 29
... possibly provide material for derivation of Plesiotexanites , Protexanites ( Pleurotexanites ) and other species of Paratexa- nites : the inner whorls are remarkably similar to those of Plesiotexanites matsumotoi sp . nov . to be ...
... possibly provide material for derivation of Plesiotexanites , Protexanites ( Pleurotexanites ) and other species of Paratexa- nites : the inner whorls are remarkably similar to those of Plesiotexanites matsumotoi sp . nov . to be ...
Page 253
... possibly illus- trate what the holotype of S. woodsi woodsi really looked like . SAM - PCP5716 ( Fig . 193 ) differs from the rest of the material in being tightest coiled , with an umbilical diameter of 32 per cent , thus approaching ...
... possibly illus- trate what the holotype of S. woodsi woodsi really looked like . SAM - PCP5716 ( Fig . 193 ) differs from the rest of the material in being tightest coiled , with an umbilical diameter of 32 per cent , thus approaching ...
Page 350
... possibly also a sharpening of the venter and gradual weakening of the lateral keels , possibly resulting in Neogauthiericeras . Plesiotexanites also probably gives rise to part of Texanites , e.g. T. collignoni , and possibly T ...
... possibly also a sharpening of the venter and gradual weakening of the lateral keels , possibly resulting in Neogauthiericeras . Plesiotexanites also probably gives rise to part of Texanites , e.g. T. collignoni , and possibly T ...
Contents
THE AMMONITE SUBFAMILY TEXANITINAE COLLIGNON | 2 |
Evolution and evolutionary trends in Texanitinae | 348 |
References | 354 |
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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