Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 75
... Tethyan crioceratitid populations . Monographic descrip- tions from Boreal ... Realm . To this apparent synchronous development of geographically separate ... Tethyan Realm and Para- crioceras Spath , 1924 , in the Boreal Realm , as was ...
... Tethyan crioceratitid populations . Monographic descrip- tions from Boreal ... Realm . To this apparent synchronous development of geographically separate ... Tethyan Realm and Para- crioceras Spath , 1924 , in the Boreal Realm , as was ...
Page 83
... Tethyan Realm and Paracrioceras in the Boreal Realm , from Crioceratites s.s. indeed a remarkable case of convergence . Thus , although Menuthiocrioceras is morphologically very similar to ' Cryptocrioceras ' , it seems preferable from ...
... Tethyan Realm and Paracrioceras in the Boreal Realm , from Crioceratites s.s. indeed a remarkable case of convergence . Thus , although Menuthiocrioceras is morphologically very similar to ' Cryptocrioceras ' , it seems preferable from ...
Page 131
... Tethyan Realm , and Acrioceras - ' Paracrioceras ' in the Boreal Realm . A full discussion on dimorphism in the subfamilies Crioceratitinae and Ancyloceratinae should be based on precisely located material from the classic European ...
... Tethyan Realm , and Acrioceras - ' Paracrioceras ' in the Boreal Realm . A full discussion on dimorphism in the subfamilies Crioceratitinae and Ancyloceratinae should be based on precisely located material from the classic European ...
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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