Annals of the South African Museum, Volume 101The Museum, 1992 - Natural history |
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Page 80
... trituberculate stage on the inner whorls . Crioceratites ( C. ) binelli may also develop constrictions on the outer whorls , as in Crioceratites ( C. ) australis , albeit associated with major ribs . The ribs on the outer whorls of C ...
... trituberculate stage on the inner whorls . Crioceratites ( C. ) binelli may also develop constrictions on the outer whorls , as in Crioceratites ( C. ) australis , albeit associated with major ribs . The ribs on the outer whorls of C ...
Page 81
... trituberculate ornamentation from the inner whorls outwards . It would seem possible to regard ' Sornayites ' in the Lower Barremian as ancestral to ' Cryptocrioceras ' in the Upper Barremian but it cannot be proven . Even if this ...
... trituberculate ornamentation from the inner whorls outwards . It would seem possible to regard ' Sornayites ' in the Lower Barremian as ancestral to ' Cryptocrioceras ' in the Upper Barremian but it cannot be proven . Even if this ...
Page 107
... trituberculate . His scheme is as follows : 1. Acrioceras s.s Hyatt , 1900 ( type species Ancyloceras tabarelli Astier , 1851 : 19 , pl . 7 ( fig . 9 ) ) - coiling acrioceratid , major ribs trituberculate . 2. Acrioceras ...
... trituberculate . His scheme is as follows : 1. Acrioceras s.s Hyatt , 1900 ( type species Ancyloceras tabarelli Astier , 1851 : 19 , pl . 7 ( fig . 9 ) ) - coiling acrioceratid , major ribs trituberculate . 2. Acrioceras ...
Contents
SHONE R | 8 |
Distribution | 39 |
STEWART B A GRIFFITHS C L | 138 |
Copyright | |
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Common terms and phrases
abbreviations Acabaria Acrioceras Aguirre Urreta Algoa Bay ammonites Ammonoidea ANGELES Annals antenna Anthocodiae Augen australis author's name Axis Barremian Bayer bicuspidata BMNH body wall branches CALIFORN calyces Cape Province Cape Town capensis Coenenchymal sclerites coiling Collignon Colony colour Colotes cortex coxa Crioceratites Cryptocrioceras described dichotomous dredge elongate Emericiceras Eunicella Exp2 Family Flügeldecken G. C. Williams gelb genera genus gilchristi Halsschild Hauterivian Hemihoplites Hickson holotype Immel inner Kopf Kükenthal length Leptogorgia Lovenula male margin material Maxillarpalpen Maxilliped Natal Orphnurgus outer Paracrioceras Paradiaptomus Paramelita paratypes pedicels peduncle Pereopod plates Polyps posteriorly R.V. Meiring Naude ribs Riccardi rods Sardinia Bay Sarkar scales schwarz sclerites segments setae setose Simpsonella South African Museum southern Africa specimens spicules spindles spines Stiasny SUID-AFRIKAANSE MUSEUM synonym Synonymy tabarelli Théel Thomel Thomson trace fossils Transkei trituberculate tuberculate Type species Uropod ventral ventrolateral Verrill whorls Wright & Studer yrigoyeni Leanza zulu Zululand