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; e-ISSN 2300-1887, more
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| Keywords |
Geological time > Phanerozoic > Paleozoic > Palaeozoic > Devonian
Brachiopoda [WoRMS]; Chaetetidae; Porifera [WoRMS]; Stromatoporoidea; Tabulata † [WoRMS]
Belgium, Ardenne [Marine Regions]
Marine/Coastal |
| Author keywords |
Devonian; Ardennes; biodiversity; stromatoporoids; chaetetids; hydroids;tabulate corals; brachiopods |
| Authors | | Top |
- Hubert, B.L.M.
- Zapalski, M.K.
- Zapalski, M.K.
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- Nicollin, J.-P.
- Mistiaen, B.
- Brice, D.
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| 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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