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Article: Allocrioceras from the Cenomanian (mid-Cretaceous) of the Lebanon and its bearing on the palaeobiological interpretation of heteromorphic ammonites

Publication: Palaeontology
Volume: 47
Part: 5
Publication Date: September 2004
Page(s): 1093 1107
Author(s): Max E. Wippich and Jens Lehmann
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How to Cite

WIPPICH, M. E., LEHMANN, J. 2004. Allocrioceras from the Cenomanian (mid-Cretaceous) of the Lebanon and its bearing on the palaeobiological interpretation of heteromorphic ammonites. Palaeontology47, 5, 1093–1107.

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Abstract

Specimens of the mid-Cretaceous heteromorphic ammonite Allocrioceras cf. annulatum (Shumard, 1860) from the Upper Cenomanian lithographic limestones of the Lebanon provide an in situ record of aptychi and interpreted remnants of internal soft tissue and stomach content. Based on this exceptionally well-preserved material, Allocrioceras is interpreted as a pelagic, aperture-upwards drifter that probably fed on comatulid crinoids.
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