New insights into the reading of Paleozoic plant fossil record discontinuities

Discontinuity; Multivariate analyses; Plant fossil record; Rock-record bias; Carboniferous; Devonian; Mississippian; Paleozoic; Pennsylvanian; Permian; Tracheophyta

Résumé :

[en] Studying the discontinuity patterns of Paleozoic vascular plants provides a global vision of these key events from the multivariate methods viewpoint. Non-metric multidimensional scaling, detrended correspondence analysis and cluster analysis have been employed together with a set of diversity and abundance measures and an evaluation of the geologic constraints from the plant fossil record data. The results reveal four clear significant discontinuities in terms of taxonomic composition and record representativeness during the early-middle Devonian, Devonian-Carboniferous, Mississippian-Pennsylvanian and early-late Permian. Due to the controversial character of the plant fossil record data and the effect of mass extinction events, the results can be explained in taxonomic turnover and ecological reorganisation terms which emphasise the crucial role of the geologic constrains in paleobiological inference. © 2011 Taylor & Francis.

Disciplines :

Biologie végétale (sciences végétales, sylviculture, mycologie...)

Auteur, co-auteur :

Cascales - Miñana, Borja ; Department of Plant Biology, University of Valencia, Av Vicente Andres Estelles s/n, 46100 Burjassot, Valencia, Spain

Langue du document :

Anglais

Titre :

New insights into the reading of Paleozoic plant fossil record discontinuities

Date de publication/diffusion :

2011

Titre du périodique :

Historical Biology

ISSN :

0891-2963

eISSN :

1029-2381

Maison d'édition :

Taylor & Francis, Royaume-Uni

Volume/Tome :

Fascicule/Saison :

2-3

Pagination :

115-130

Peer reviewed :

Peer reviewed vérifié par ORBi

Disponible sur ORBi :

depuis le 08 janvier 2015

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Nombre de téléchargements

1 (dont 0 ULiège)

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