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Selected benthic faunas from the Devonian of the Ardennes: an estimation of palaeobiodiversity
Hubert, B.L.M.; Zapalski, M.K.; Zapalski, M.K.; Nicollin, J.-P.; Mistiaen, B.; Brice, D. (2007). Selected benthic faunas from the Devonian of the Ardennes: an estimation of palaeobiodiversity. Acta Geol. Pol. 57(2): 223-262
In: Acta Geologica Polonica. Muzeum Ziemi: Warszawa. ISSN 0001-5709, more
Peer reviewed article  

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Keywords
Author keywords
    Devonian; Ardennes; biodiversity; stromatoporoids; chaetetids; hydroids;tabulate corals; brachiopods

Authors  Top 
  • Hubert, B.L.M.
  • Zapalski, M.K.
  • Zapalski, M.K.
  • Nicollin, J.-P.
  • Mistiaen, B.
  • Brice, D.

Abstract
    A survey of the principal benthic faunas from the Devonian of the Ardennes is presented. The alpha-diversity is very high ( 707 species, including 138 species of stromatoporoids, 113 species of tabulates, hydroids and chaetetids, and 456 species of brachiopods). Analysis of their distribution through time indicates two brachiopod diversity peaks ( Emsian/Eifelian and Frasnian), a single stromatoporoid diversity peak ( Givetian), and no clear peak of tabulate corals ( with the highest diversification during the Eifelian - Frasnian). The highest diversity of bioconstructors in the Givetian correlates with a decrease in brachiopod diversity. Changes in the vertical distribution of the faunas are correlated with the facies development: the development of carbonates correlates with the abundance of stromatoporoids and tabulates, while brachiopods were most abundant before and after the peak of carbonate development. Bioconstructors are absent ( or nearly absent) in siliciclastic facies.

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