Selected benthic faunas from the Devonian of the Ardennes: an estimation of palaeobiodiversity
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 corre... Mehr ...
Verfasser: | |
---|---|
Dokumenttyp: | Artikel |
Erscheinungsdatum: | 2007 |
Schlagwörter: | Devonian / Brachiopoda [Lamp shells] / Chaetetidae / Porifera [Sponges] / Stromatoporoidea / Tabulata / Belgium / Ardenne |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-27357082 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | https://www.vliz.be/imisdocs/publications/320280.pdf |
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.