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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-38572

Sulser, H; García-Ramos, D; Kürsteiner, P; Menkveld-Gfeller, U (2010). Taxonomy and palaeoecology of brachiopods from the South-Helvetic zone of the Fäneren region (Lutetian, Eocene, NE Switzerland). Swiss Journal of Geosciences, 103:257-272.

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Abstract

Terebratuloid and cancellothyridoid brachiopods from the South-Helvetic Lutetian (Eocene) of the Fäneren region (NE Switzerland) are described: Carneithyris subregularis (Quenstedt) and two forms of Terebratulina s.l. under open nomenclature. Several species of Alpine and non-Alpine origin, related to Carneithyris subregularis, like Terebratula kickxi Galeotti, Terebratula aequivalvis Schafhäutl and Terebratula hilarionis Davidson show characters, which compare well with Carneithyris subregularis. Two of them, T. aequivalvis and T. hilarionis, are assigned to the genus Carneithyris. The stratigraphy and lithology of the sediments in the study area are reassessed. Life habits and palaeoecology of the brachiopods are discussed. C. subregularis apparently was a free living brachiopod without attachment to the substrate, as indicated by massive accumulations of callosities in the posterior parts of the shell. The variability of the cardinal process, as seen in the studied Carneithyris group can be interpreted as a morphological element to enlarge the surface of attachment of strong diductor muscles in relation to the internal thickening of the individual.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Paleontological Institute and Museum
DDC:560 Fossils & prehistoric life
Uncontrolled Keywords:Bivalvia - Arcoida - Grammatodon - Opalinuston Formation - Aalenian - Functional morphology
Language:English
Date:2010
Deposited On:15 Nov 2010 08:34
Last Modified:02 Oct 2014 13:11
Publisher:Birkhäuser
ISSN:1661-8726
Publisher DOI:10.1007/s00015-010-0017-1

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