Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 74
The ornamentation of the inner whorls consists of strong , trituberculate ribs and
intercalatories . Both types pass over the flanks on the whole surface . On the
outer whorls all the ribs are the same with smooth bullae . The suture line
consists of ...
The ornamentation of the inner whorls consists of strong , trituberculate ribs and
intercalatories . Both types pass over the flanks on the whole surface . On the
outer whorls all the ribs are the same with smooth bullae . The suture line
consists of ...
Page 98
At the smallest diameter visible ( 30 mm ) , ornament consists of distant umbilical
bullae giving rise to groups of two to three ribs with three or four single , non -
bullate ribs between . All ribs are delicate , narrow , rursiradiate and rather
crowded ...
At the smallest diameter visible ( 30 mm ) , ornament consists of distant umbilical
bullae giving rise to groups of two to three ribs with three or four single , non -
bullate ribs between . All ribs are delicate , narrow , rursiradiate and rather
crowded ...
Page 127
... the ventrolateral shoulders rounded and the rather narrow venter somewhat
flattened . Ornament consists of dense , broad , relatively strong , flexuous
crowded ribs . Twenty - four ribs per whorl arise at the umbilical seam as mere
striae .
... the ventrolateral shoulders rounded and the rather narrow venter somewhat
flattened . Ornament consists of dense , broad , relatively strong , flexuous
crowded ribs . Twenty - four ribs per whorl arise at the umbilical seam as mere
striae .
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Common terms and phrases
according Acrioceras Aguirre Urreta Ancyloceratinae appears Aspinoceras association australis sp authors Barremian bear BMNH body chamber Boreal ceras close coiling coiling Collignon 1962 compared compressed consists Crioceratites Cryptocrioceras described Description developed diameter dimorphism discussion distinct early elongated Emericiceras figured finely flanks followed forms genus Hemihoplites holotype illustrations Immel impression included inner whorls Italy Klinger known lateral lobe locality Lower material Menuthiocrioceras Museum Note occur ornament outer whorls Paracrioceras Patagonia possible preserved Realm recently referred regarded ribs Riccardi & Aguirre rounded Sarkar separate shaft shoulder shows similar single Sornayites South southern Spath specimens stage strong strongly subfamilies suggested suture synonym systematic tabarelli Astier taxonomic Tethyan Thieuloy Thomel trituberculate tubercles type species umbilical uncoiled Upper Upper Barremian variable venter ventral ventrolateral whorl section Wiedmann Wright yrigoyeni Leanza zone zulu sp Zululand
Bibliographic information
| Title | Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum Volume 101, Issue 5 of Annals of the South African Museum, South African Museum |
| Author | South African Museum |
| Publisher | South African Museum, 1992 |
| Original from | the University of California |
| Digitized | 21 Jul 2016 |
| ISBN | 0868131288, 9780868131283 |
| Export Citation | BiBTeX EndNote RefMan |