Stars in the Silurian sky : Echinoderm holdfasts from the Carnic Alps, Austria
Ferretti, A. (Università degli Studi di Modena e Reggio Emilia. Dipartimento di Scienze Chimiche e Geologiche)
Ausich, W. I. (The Ohio State University. School of Earth Sciences)
Corradini, C. (Università di Cagliari. Dipartimento di Scienze Chimiche e Geologiche)
Corriga, M. G. (Università di Cagliari. Dipartimento di Scienze Chimiche e Geologiche)
Schönlaub, H. P. (Austrian Academy of Sciences. Commission for Geosciences)

Date:	2014
Abstract:	A small collection of echinoderm holdfasts from the Ludlow Cardiola Formation of the Carnic Alps (Austria) contains a wide range of morphologies as a response of environmental adaptation. In general, the holdfasts have a globous and massive dome-like profile with several processes arranged in a sub-radial disposition, so to create a sort of 'star-like' outline. A small central depression is common but not present on all specimens. The distinctive holdfasts are preserved in an iron-rich phase, documenting a substitution that has also affected other non-echinoderm calcareous material.
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, sempre i quan aquestes es distribueixin sota la mateixa llicència que regula l'obra original i es reconegui l'autoria.
Language:	Anglès
Document:	Article ; recerca ; Versió publicada
Subject:	Pelmatozoans ; Holdfast ; Functional morphology ; Palaeoecology ; Iron ; Silurian ; Cardiola formation
Published in:	Geologica acta, Vol. 14 Núm. 4 (december 2016) , p. 335-347 (Articles) , ISSN 1696-5728

Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/316038
DOI: 10.1344/GeologicaActa2016.14.4.1

13 p, 5.5 MB

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