Annals of the South African Museum, Volume 80The Museum, 1980 - Natural history |
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Page 119
... higher than wide on the inner whorls , through subsquare with a fastigiate venter in the late phragmocone to distinctly higher than wide on the body chamber ( Fig . 90A ) . The innermost whorls are not preserved , but at a diameter of c ...
... higher than wide on the inner whorls , through subsquare with a fastigiate venter in the late phragmocone to distinctly higher than wide on the body chamber ( Fig . 90A ) . The innermost whorls are not preserved , but at a diameter of c ...
Page 138
... wider than high in early stages , whereas the intercostal section is more rounded ( Figs 106B , 108 ) . Towards the later part of the phragmocone the whorl section becomes more rounded ( Fig . 107B ) , higher than wide , and eventually ...
... wider than high in early stages , whereas the intercostal section is more rounded ( Figs 106B , 108 ) . Towards the later part of the phragmocone the whorl section becomes more rounded ( Fig . 107B ) , higher than wide , and eventually ...
Page 160
... higher than wide with maximum whorl breadth at the umbilical ( 1 ) tubercle or lateral ( 2 ) tubercle , but later migrating towards the submarginal ( 3 ) tubercle . SAS - Z596 shows part of the early ontogeny . At a diameter of 14 mm ...
... higher than wide with maximum whorl breadth at the umbilical ( 1 ) tubercle or lateral ( 2 ) tubercle , but later migrating towards the submarginal ( 3 ) tubercle . SAS - Z596 shows part of the early ontogeny . At a diameter of 14 mm ...
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