Difference between revisions of "Counterseptum"
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''Remarks:'' The term was introduced by Barker and Grimsdale (1936) for proximal portions of the main chamber septum below the main foramen in ''A. lopeztrigoi''. The hook may be identical with the [[gutter]] in Old World amphisteginids. The nature of the "complete", helicosteginid countersepta remains to be analysed the more so as the relation between "countersepta" and [[stellar septula]] in the New World amphisteginids is not clear. | ''Remarks:'' The term was introduced by Barker and Grimsdale (1936) for proximal portions of the main chamber septum below the main foramen in ''A. lopeztrigoi''. The hook may be identical with the [[gutter]] in Old World amphisteginids. The nature of the "complete", helicosteginid countersepta remains to be analysed the more so as the relation between "countersepta" and [[stellar septula]] in the New World amphisteginids is not clear. | ||
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==References== | ==References== | ||
+ | Barker & Grimsdale (1936), A contribution to the phylogeny of the orbitoidal Foraminifera, with descriptions of new forms from the Eocene of Mexico, Journal of Paleontology, London, vol. 10, N° 4, p. 231-247. | ||
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Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744 | Hottinger (2006), [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Illustrated glossary of terms used in foraminiferal research]. [http://paleopolis.rediris.es/cg/uk-index.html Carnets de Géologie], [http://paleopolis.rediris.es/cg/CG2006_M02/index.html Memoir 2], ISSN 1634-0744 | ||
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