Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 80
... australis sp . nov . in the very short trituberculate stage on the inner whorls . Crioceratites ( C. ) binelli may also develop constrictions on the outer whorls , as in Crioceratites ( C. ) australis , albeit associated with major ribs ...
... australis sp . nov . in the very short trituberculate stage on the inner whorls . Crioceratites ( C. ) binelli may also develop constrictions on the outer whorls , as in Crioceratites ( C. ) australis , albeit associated with major ribs ...
Page 94
... australis sp . nov . described below ( see p . 98 ) , differs from C. ( C. ) yrigoyeni in having a tuberculate stage of much shorter duration , and the ornament is never as coarse as in the latter . Also , C. ( C. ) australis develops ...
... australis sp . nov . described below ( see p . 98 ) , differs from C. ( C. ) yrigoyeni in having a tuberculate stage of much shorter duration , and the ornament is never as coarse as in the latter . Also , C. ( C. ) australis develops ...
Page 97
... species is also more open crioceratitid than in C. ( C. ) yrigoyeni ... sp . , and subsequently as Paracrioceras ( Thomson 1983 : 410 , text - fig ... australis Klinger et al . , 1984 , Barremian I. Туре Crioceratites ...
... species is also more open crioceratitid than in C. ( C. ) yrigoyeni ... sp . , and subsequently as Paracrioceras ( Thomson 1983 : 410 , text - fig ... australis Klinger et al . , 1984 , Barremian I. Туре Crioceratites ...
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Common terms and phrases
Acrioceras Acrioceras sp Africa Aguirre Urreta 1981 ammonites Ammonoidea Ancyloceras Ancyloceratinae Aptian Aspinoceras aspinoceratid australis sp barremense BMNH body chamber Boreal and Tethyan bullae ceras cliff and gully close coiling coarsely ornamented Collignon 1962 compressed Crioceratites Crioceratites s.s. Cryptocrioceras cundimarcae d'Orbigny diameter dimorphism discussion early whorls emerici Emericiceras family Ancyloceratidae flexuous genus genus Crioceratites Geology Giovine group of Crioceratites Hauterivian Hemihoplites sp holotype Immel inner whorls Kakabadze 1981 Leveillé lobe locality 170 Lower Barremian major ribs material Menuthiocrioceras Mlambongwenya Trading Store monopujaae Neuquén Obata outer whorls Palaeontology Paracrioceras Paraspinoceras Patagonia Pedioceras phragmocone Pseudothurmannia Rawson referred ribs Riccardi & Aguirre Sarkar Sornayites South African Museum southern Patagonia Spath species groups specimens tabarelli Astier taxonomic Tethyan Realm text-fig Thieuloy Thomel trituberculate ribs tubercles type species umbilical shoulder umbilical wall uncoiled Unterkreide Upper Barremian Upper Hauterivian Valanginian venter ventral tubercles ventrolateral shoulder whorl section Wiedmann yrigoyeni Leanza zulu sp Zululand