Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 71
... Suture terminology Systematic palaeontology ខ្ចី ន ន ន ន ន ន 72 72 72 73 73 73 Discussion on shell shape , dimorphism and systematics in Crioceratitinae and Ancyloceratinae 129 Conclusion .... 132 Acknowledgements ... . 132 ...
... Suture terminology Systematic palaeontology ខ្ចី ន ន ន ន ន ន 72 72 72 73 73 73 Discussion on shell shape , dimorphism and systematics in Crioceratitinae and Ancyloceratinae 129 Conclusion .... 132 Acknowledgements ... . 132 ...
Page 73
... SUTURE TERMINOLOGY The suture terminology of Wedekind ( 1916 ) reviewed by Kullmann & Wiedmann ( 1970 ) is followed here . I = internal lobe ; U = umbilical lobe ; L = lateral lobe ; E = external lobe . SYSTEMATIC PALAEONTOLOGY Phylum ...
... SUTURE TERMINOLOGY The suture terminology of Wedekind ( 1916 ) reviewed by Kullmann & Wiedmann ( 1970 ) is followed here . I = internal lobe ; U = umbilical lobe ; L = lateral lobe ; E = external lobe . SYSTEMATIC PALAEONTOLOGY Phylum ...
Page 74
... suture line consists of bifid saddles and trifid lobes , asym- metrical ; the lateral lobe is very large and well developed . Examination of the suture line clearly shows that Mantelliceras yrigoyeni , of which Acanthoceras hoggi is a ...
... suture line consists of bifid saddles and trifid lobes , asym- metrical ; the lateral lobe is very large and well developed . Examination of the suture line clearly shows that Mantelliceras yrigoyeni , of which Acanthoceras hoggi is 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