Land plants in the Devonian Villavicencio Formation, Mendoza Province, Argentina

Edwards, Dianne ORCID: https://orcid.org/0000-0002-9786-4395, Morel, E., Poire, D. G. and Cingolani, C. A. 2001. Land plants in the Devonian Villavicencio Formation, Mendoza Province, Argentina. Review of Palaeobotany and Palynology 116 (1-2) , pp. 1-18. 10.1016/S0034-6667(01)00059-8

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Abstract

Plant assemblages are described from two localities, San Isidro Creek and Vaqueria, in the marine basal Devonian Villavicencio Formation in Mendoza Province, the Argentine Precordillera. Abundant smooth and more rarely axes with enations occur with rare fertile specimens and isolated swollen structures interpreted as sporangia. Sterile ‘leafy’ axes are placed in a new morphotaxon, Bowerophylloides, and a new genus, Isidrophyton, has been erected to accommodate sterile axes with vertically elongate, fusiform surface features and terminal sessile sporangia borne in pairs. The plants are at similar grades of organisation to those in coeval assemblages elsewhere, but cannot be assigned unequivocally to existing taxa. The locations of these Lochkovian assemblages are plotted on basal Devonian palaeocontinental reconstructions and it is concluded that the composition and the isolated position of the Argentina assemblages on the western margin of Gondwana at mid latitudes in a possibly cool temperate climate hint at a distinct phytogeographic unit.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Earth and Environmental Sciences
Subjects:	Q Science > QE Geology Q Science > QK Botany
Uncontrolled Keywords:	Argentina; land-plants; Lochkovian; palaeogeography; Rhyniophytoids
Publisher:	Elsevier
ISSN:	0034-6667
Last Modified:	18 Oct 2022 12:30
URI:	https://orca.cardiff.ac.uk/id/eprint/10065

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