Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 74
... developed . Examination of the suture line clearly shows that Mantelliceras yrigoyeni , of which Acanthoceras hoggi is a synonym , is a typical quadrilobate member of the suborder Ancyloceratina . Also , subsequent detailed ...
... developed . Examination of the suture line clearly shows that Mantelliceras yrigoyeni , of which Acanthoceras hoggi is a synonym , is a typical quadrilobate member of the suborder Ancyloceratina . Also , subsequent detailed ...
Page 79
... developed uncoiled stage ; collections Staatliches Museum für Naturkunde , Stuttgart , cat . no . 6076 , from Escrag- nolles , France . Total length 95 cm . ( Photograph supplied by courtesy of Dr G. Dietl . ) 28 , pl . 3 ( figs 2-3 ) ...
... developed uncoiled stage ; collections Staatliches Museum für Naturkunde , Stuttgart , cat . no . 6076 , from Escrag- nolles , France . Total length 95 cm . ( Photograph supplied by courtesy of Dr G. Dietl . ) 28 , pl . 3 ( figs 2-3 ) ...
Page 114
... developed , and some bear indications that they are in fact the bases of short spines . Tubercle strength varies from mere swellings to marked , sharp excrescences . As size increases , there is a tendency towards a pattern of a ...
... developed , and some bear indications that they are in fact the bases of short spines . Tubercle strength varies from mere swellings to marked , sharp excrescences . As size increases , there is a tendency towards a pattern of a ...
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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