European Jurassic floras : statistics and palaeoenvironmental proxies

The Jurassic floras of Europe show considerable diversity. To examine the extent of this diversity and its possible causes we used multivariate statistical methods (cluster analysis, PCA, NMDS) to compare all significant Jurassic floras in Europe. Data were based on 770 taxa from 46 fossiliferous oc...

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Bibliographic Details
Published in:Acta Palaeobotanica
Main Authors: Barbacka, Maria, Bodor, Emese, Jarzynka, Agata, Kustatscher, Evelyn, Pacyna, Grzegorz, Popa, Mihai E., Scanu, Giovanni G., Thévenard, Frédéric, Ziaja, Jadwiga
Format: Other/Unknown Material
Language:English
Published: 2014
Subjects:
flora composition
autochthonous and allochthonous floras
cluster analysis
PCA
NMDS
Jurassic
Europe
Greenland
Norway
Online Access:http://ruj.uj.edu.pl/xmlui/handle/item/6056
https://doi.org/10.2478/acpa-2014-0011
Description
Summary:The Jurassic floras of Europe show considerable diversity. To examine the extent of this diversity and its possible causes we used multivariate statistical methods (cluster analysis, PCA, NMDS) to compare all significant Jurassic floras in Europe. Data were based on 770 taxa from 46 fossiliferous occurrences (25 units) from France, Germany, Greenland, Hungary, Italy, Norway, Poland, Romania, Scotland, Serbia, Sweden, Switzerland, and the United Kingdom. Statistical analyses were applied at species level and genus level, and also performed for the major plant groups. The genus cladograms show affinities between different localities based on environmental factors, while the cladograms based on species affinities indicate only taxonomical correlations. The study shows that locality age does not seem to be of paramount importance for floral composition.

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