Annals of the South African Museum: Annale Van Die Suid-Afrikaanse MuseumSouth African Museum, 1992 - Natural history |
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Page 68
... appear with all illustrations , otherwise magnification or reduction should be given in the caption ; if the latter , then the final reduction or enlargement should be taken into consideration . All illustrations , whether line drawings ...
... appear with all illustrations , otherwise magnification or reduction should be given in the caption ; if the latter , then the final reduction or enlargement should be taken into consideration . All illustrations , whether line drawings ...
Page 83
... appears that Pedioceras lacks differentiation into major and minor ribs on the inner whorls , and is thus easily distinguished from ' Cryptocrioceras ' . The specimen figured by Yenne ( 1949 , pl . 102 ( fig . 1 ) ) appears to be a ...
... appears that Pedioceras lacks differentiation into major and minor ribs on the inner whorls , and is thus easily distinguished from ' Cryptocrioceras ' . The specimen figured by Yenne ( 1949 , pl . 102 ( fig . 1 ) ) appears to be a ...
Page 85
... appears also to be the case in later whorls , the dorsum of which is also impressed , and which also shows what appear to be depressions to house spines ( e.g. Fig . 10D ) . The whorl section varies from compressed to depressed , with ...
... appears also to be the case in later whorls , the dorsum of which is also impressed , and which also shows what appear to be depressions to house spines ( e.g. Fig . 10D ) . The whorl section varies from compressed to depressed , with ...
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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