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Middle Pennsylvanian vegetation of the San Giorgio Basin, southern Sardinia (Italy)

Published online by Cambridge University Press:  03 October 2016

CHRISTOPHER J. CLEAL ,
GIOVANNI G. SCANU Open the ORCID record for GIOVANNI G. SCANU [Opens in a new window] ,
CARLA BUOSI ,
PAOLA PITTAU  and
EVELYN KUSTATSCHER
CHRISTOPHER J. CLEAL*
Affiliation:
Department of Natural Sciences, National Museum Wales, Cathays Park, Cardiff CF10 3NP, UK
GIOVANNI G. SCANU
Affiliation:
AMAP c/o CIRAD, Boulevard de la Lironde, 34398 Montpellier Cedex 5, France Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, Via Trentino 51, Cagliari, Italy
CARLA BUOSI
Affiliation:
Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, Via Trentino 51, Cagliari, Italy
PAOLA PITTAU
Affiliation:
Dipartimento di Scienze Chimiche e Geologiche, Università di Cagliari, Via Trentino 51, Cagliari, Italy
EVELYN KUSTATSCHER
Affiliation:
Naturmuseum Südtirol, Bindergasse 1, 39100 Bozen, Italy Department für Geo- und Umweltwissenschaften, Paläontologie und Geobiologie, Ludwig-Maximilians-Universität München and Bayerische Staatssammlung für Paläontologie und Geobiologie, Richard-Wagner-Straße 10, 80333 München, Germany
*
†Author for correspondence: chris.cleal@museumwales.ac.uk
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Abstract

The small, intramontane San Giorgio Basin in southwestern Sardinia has yielded plant macrofossils dominated by sphenophytes, but with subsidiary pteridosperms, ferns, (?)noeggerathians and cordaitanthaleans. They belong to the upper part of the Crenulopteris acadica Zone or possibly the Odontopteris cantabrica Zone, indicating a late Asturian or Cantabrian (≡ late Moscovian) age. They therefore correlate with the post-Leonian deposits in northern Spain, the Nýřany Member in Western and Central Bohemia, and the Llantwit Beds in South Wales. The presence of post-tectonic deposits of this age is further evidence of the widespread influence of the Leonian Phase of tectonic activity in middle Asturian times, whose effect can be observed across Europe. The San Giorgio Basin is therefore a late Variscan rather than post-Variscan basin.

Keywords

palaeobotanybiostratigraphyMoscovianSardinia
Type
Original Articles
Information
Geological Magazine , Volume 154 , Issue 5 , September 2017 , pp. 1155 - 1170
Copyright
Copyright © Cambridge University Press 2016 

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