Annals of the South African Museum: Annale Van Die Suid-Afrikaanse Museum |
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Page 76
Suggested phylogeny of major branches of Crioceratites to illustrate the trend
towards recoiling , according to Wiedmann ( 1962 ) . 1. C. ( C. ) . duvali . 2. C. ( C.
) nolani . 3. C. ( C. ) emerici ( = ' Emericiceras ' ) . 4. C. ( Sornayites ) paronai . 5.
Suggested phylogeny of major branches of Crioceratites to illustrate the trend
towards recoiling , according to Wiedmann ( 1962 ) . 1. C. ( C. ) . duvali . 2. C. ( C.
) nolani . 3. C. ( C. ) emerici ( = ' Emericiceras ' ) . 4. C. ( Sornayites ) paronai . 5.
Page 81
Even if this suggested phylogenetic sequence is not wholly true , the features of '
Cryptocrioceras ' are by no means so unique as to merit generic separation from
Crioceratites s.l. The features of ' Cryptocrioceras ' are as far removed from the ...
Even if this suggested phylogenetic sequence is not wholly true , the features of '
Cryptocrioceras ' are by no means so unique as to merit generic separation from
Crioceratites s.l. The features of ' Cryptocrioceras ' are as far removed from the ...
Page 131
Annale Van Die Suid-Afrikaanse Museum South African Museum. ceras ' )
suggest that it is possible , or probable , that they constitute a dimorphic pair .
This association is analogous to that of Acrioceras - ' Emericiceras ' in the
Tethyan Realm ...
Annale Van Die Suid-Afrikaanse Museum South African Museum. ceras ' )
suggest that it is possible , or probable , that they constitute a dimorphic pair .
This association is analogous to that of Acrioceras - ' Emericiceras ' in the
Tethyan Realm ...
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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 |