Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 83
... figured specimens referred to Pedioceras by different authors ( e.g. Gerhardt 1897 ; Royo y Gómez 1945 ; Yenne 1949 ) in fact all belong to the same genus . If Pedioceras is interpreted in terms of Gerhardt's ( 1897 : 170–171 ) ...
... figured specimens referred to Pedioceras by different authors ( e.g. Gerhardt 1897 ; Royo y Gómez 1945 ; Yenne 1949 ) in fact all belong to the same genus . If Pedioceras is interpreted in terms of Gerhardt's ( 1897 : 170–171 ) ...
Page 94
... figured by Aguirre Urreta ( 1981 ) , but the similar inner whorls leave no doubt that they all belong to the same species . Our material is significant in that it shows the extreme variation , not only in strength of ornament on the ...
... figured by Aguirre Urreta ( 1981 ) , but the similar inner whorls leave no doubt that they all belong to the same species . Our material is significant in that it shows the extreme variation , not only in strength of ornament on the ...
Page 97
... figured specimens of C. janus are small , and we do not know if they are juveniles or small adults . Crioceratites ( C. ) thiollierei ( Astier , 1851 : 18 , pl . 5 ( fig . 7 ) ) resembles our compressed forms as far as the ornament is ...
... figured specimens of C. janus are small , and we do not know if they are juveniles or small adults . Crioceratites ( C. ) thiollierei ( Astier , 1851 : 18 , pl . 5 ( fig . 7 ) ) resembles our compressed forms as far as the ornament is ...
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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