Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 73
... subfamilies Crioceratitinae Wright , 1952 , and Ancyloceratinae Gill , 1871 ( Wright 1952 , 1957 ; Wiedmann 1962 ; Thomel 1964 ; Kakabadze 1981 ) , but may also include the subfamily Helicancyli- nae Hyatt , 1894 ( Casey 1961 : 76 ...
... subfamilies Crioceratitinae Wright , 1952 , and Ancyloceratinae Gill , 1871 ( Wright 1952 , 1957 ; Wiedmann 1962 ; Thomel 1964 ; Kakabadze 1981 ) , but may also include the subfamily Helicancyli- nae Hyatt , 1894 ( Casey 1961 : 76 ...
Page 131
... subfamilies Crioceratitinae and Ancyloceratinae should be based on precisely located material from the classic European localities in the Boreal and Tethyan realms , respectively . We here limit ourselves to a discussion of some obvious ...
... subfamilies Crioceratitinae and Ancyloceratinae should be based on precisely located material from the classic European localities in the Boreal and Tethyan realms , respectively . We here limit ourselves to a discussion of some obvious ...
Page 132
... subfamilies . CONCLUSION From the above discussion it appears likely , or even probable , that small forms with acrioceratid / aspinoceratid coiling ( Acrioceras ) and larger forms with crioceratitid coiling ( Crioceratites ) might ...
... subfamilies . CONCLUSION From the above discussion it appears likely , or even probable , that small forms with acrioceratid / aspinoceratid coiling ( Acrioceras ) and larger forms with crioceratitid coiling ( Crioceratites ) might ...
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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