Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 73
... diameter , Wb = whorl breadth ; Wh = whorl height , U = umbilical diameter . Figures in parentheses are ratios expressed as a percentage of the total diameter . SUTURE TERMINOLOGY The suture terminology of Wedekind ( 1916 ) reviewed by ...
... diameter , Wb = whorl breadth ; Wh = whorl height , U = umbilical diameter . Figures in parentheses are ratios expressed as a percentage of the total diameter . SUTURE TERMINOLOGY The suture terminology of Wedekind ( 1916 ) reviewed by ...
Page 93
... diameter of c . 4-5 mm , the whorl section is distinctly coronate , depressed as seen in C80055 ( Fig . 14 ) and PCZ8425b ( Fig . 16 ) . There are about 20–25 ribs per whorl . These arise on the umbilical wall and bear faint conical to ...
... diameter of c . 4-5 mm , the whorl section is distinctly coronate , depressed as seen in C80055 ( Fig . 14 ) and PCZ8425b ( Fig . 16 ) . There are about 20–25 ribs per whorl . These arise on the umbilical wall and bear faint conical to ...
Page 129
... diameter of the Patagonian specimens ranges from 28 to 40 per cent of the total diameter , compared to only 20 per cent in the Zululand specimen . For the present it is best to refer to the specimen as Hemihoplites sp . cf. H ...
... diameter of the Patagonian specimens ranges from 28 to 40 per cent of the total diameter , compared to only 20 per cent in the Zululand specimen . For the present it is best to refer to the specimen as Hemihoplites sp . cf. H ...
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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