Annals of the South African Museum, Volume 80The Museum, 1980 - Natural history |
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Page 172
... texanitid systematics . The texanitids occur mainly in two areas - the type section of the Umzamba Formation at the Umzamba Estuary , Transkei , locality 1 of the authors ( Kennedy & Klinger 1975 : 281 ; Klinger & Kennedy in press ) and ...
... texanitid systematics . The texanitids occur mainly in two areas - the type section of the Umzamba Formation at the Umzamba Estuary , Transkei , locality 1 of the authors ( Kennedy & Klinger 1975 : 281 ; Klinger & Kennedy in press ) and ...
Page 282
... texani- tids on account of the multiplication of the external row of tubercles , but also on stratigraphic grounds , being apparently the last texanitids to survive of a very successful lineage dating from the Upper Coniacian ...
... texani- tids on account of the multiplication of the external row of tubercles , but also on stratigraphic grounds , being apparently the last texanitids to survive of a very successful lineage dating from the Upper Coniacian ...
Page 352
... texanitids towards the end of Middle Campanian time appears to have been virtually instantaneous , following a period of virtual maximum development and occasional gigantism in Zululand , and no texani- tids are known from the Upper ...
... texanitids towards the end of Middle Campanian time appears to have been virtually instantaneous , following a period of virtual maximum development and occasional gigantism in Zululand , and no texani- tids are known from the Upper ...
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