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Article: Evidence for Palaeozoic orthoconic cephalopods with bimineralic shells

Palaeontology Cover Image - Volume 61 Part 2
Publication: Palaeontology
Volume: 61
Part: 2
Publication Date: March 2018
Page(s): 173 181
Author(s): Kenneth De Baets, and Axel Munnecke
Addition Information

How to Cite

BAETS, K.D., MUNNECKE, A. 2018. Evidence for Palaeozoic orthoconic cephalopods with bimineralic shells. Palaeontology, 61, 2, 173-181. DOI: 10.1111/pala.12343

Author Information

  • Kenneth De Baets - GeoZentrum Nordbayern Friedrich‐Alexander Universität Erlangen‐Nürnberg Loewenichstrasse 28 D‐91054 Erlangen Germany
  • Axel Munnecke - GeoZentrum Nordbayern Friedrich‐Alexander Universität Erlangen‐Nürnberg Loewenichstrasse 28 D‐91054 Erlangen Germany

Publication History

  • Issue published online: 08 February 2018
  • Manuscript Accepted: 06 November 2017
  • Manuscript Received: 06 September 2017

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Wiley Online Library (Free Access)
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Abstract

Based on the aragonite composition of extant and exceptionally preserved fossil cephalopods going back to the early Palaeozoic, it is commonly assumed that all externally shelled cephalopods had an aragonitic shell wall. We demonstrate herein that at least two taxa of Siluro‐Devonian orthoconic nautiloids (Dawsonoceras, Spyroceras) had an original bimineralic shell, which developed convergently with gastropods and bivalves.

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