Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 81
... included the whorl section , which is as wide as high to slightly wider than high
, the contiguous whorls with a dorsal zone of impression such as found in
Lytoceras , trituberculate ornamentation , and lack of an uncoiled section .
Collignon ...
... included the whorl section , which is as wide as high to slightly wider than high
, the contiguous whorls with a dorsal zone of impression such as found in
Lytoceras , trituberculate ornamentation , and lack of an uncoiled section .
Collignon ...
Page 82
181 ( fig . 821 ) —this could possibly be an uncoiled neocomitid and not a
crioceratitid ( Dr P. F. Rawson pers . comm . ) ) , are already closely coiled with a
distinct dorsal zone of impression , as also are the better known forms from the
Upper ...
181 ( fig . 821 ) —this could possibly be an uncoiled neocomitid and not a
crioceratitid ( Dr P. F. Rawson pers . comm . ) ) , are already closely coiled with a
distinct dorsal zone of impression , as also are the better known forms from the
Upper ...
Page 83
This would not involve any drastic uncoiling in the Lower Barremian , neither
would it involve dramatic change in ornament . It would ... Pseudocrioceras has
an uncoiled straight shaft after the planispiral section , which clearly distinguishes
it ...
This would not involve any drastic uncoiling in the Lower Barremian , neither
would it involve dramatic change in ornament . It would ... Pseudocrioceras has
an uncoiled straight shaft after the planispiral section , which clearly distinguishes
it ...
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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 |