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An earliest Hettangian (Jurassic) belemnitid from Great Britain with a preserved proostracum


Klug, C; Fuchs, D (2010). An earliest Hettangian (Jurassic) belemnitid from Great Britain with a preserved proostracum. In: Tanabe, K; Shigeta, Y; Sasaki, T; Hirano, H. Cephalopods - present and past. Kanagawa: Tokai University Press, 181-185.

Abstract

A new specimen of an earliest Hettangian (Jurassic) belemnite (Coeloidea, Cephalopoda) is described herein. It displays the complete, typically belemnitid proostracum, the ink sac with its duct, questionable remains of the nuchal cartilage, and half of the phragmocone. Since the apical part of the phragmocone is missing, it is unclear what kind of rostrum was present and a taxonomic assignment is thus impossible. This represents the earliest record of an undoubted belemnitid proostracum of clear stratigraphic affi nity.

Abstract

A new specimen of an earliest Hettangian (Jurassic) belemnite (Coeloidea, Cephalopoda) is described herein. It displays the complete, typically belemnitid proostracum, the ink sac with its duct, questionable remains of the nuchal cartilage, and half of the phragmocone. Since the apical part of the phragmocone is missing, it is unclear what kind of rostrum was present and a taxonomic assignment is thus impossible. This represents the earliest record of an undoubted belemnitid proostracum of clear stratigraphic affi nity.

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Additional indexing

Item Type:Book Section, refereed, original work
Communities & Collections:07 Faculty of Science > Paleontological Institute and Museum
Dewey Decimal Classification:560 Fossils & prehistoric life
Uncontrolled Keywords:Belemnitida, Coleoidea, proostracum, Hettangian, South England
Language:English
Date:2010
Deposited On:11 Jan 2010 10:26
Last Modified:06 Dec 2017 23:04
Publisher:Tokai University Press
ISBN:978-4-486-01876-6
Additional Information:The 7th International Symposium, Cephalopods - Present and Past, held September 14-16, 2007, at the Conference Hall, Hokkaido University, Sapporo, Hokkaido.
Related URLs:http://www.recherche-portal.ch/ZAD:default_scope:ebi01_prod009547897 (Library Catalogue)

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