The fate of the homoctenids (Tentaculitoidea) during the Frasnian-Famennian mass extinction (Late Devonian)

Article English OPEN
Bond, David P.G. (2006)
  • Publisher: Blackwell

The homoctenids (Tentaculitoidea) are small, conical-shelled marine animals which are amongst the most abundant and widespread of all Late Devonian fossils. They were a principal casualty of the Frasnian-Famennian (F-F, Late Devonian) mass extinction, and thus provide an insight into the extinction dynamics. Despite their abundance during the Late Devonian, they have been largely neglected by extinction studies. A number of Frasnian-Famennian boundary sections have been studied, in Poland, Germany, France, and the United States. These sections have yielded homoctenids, which allow precise recognition of the timing of the mass extinction. It is clear that the homoctenids almost disappear from the fossil record during the latest Frasnian “Upper Kellwasser Event”. The coincident extinction of this pelagic group, and the widespread development of intense marine anoxia within the water column, provides a causal link between anoxia and the F-F extinction. Most notable is the sudden demise of a group, which had been present in rock-forming densities, during this anoxic event. One new species, belonging to Homoctenus is described, but is not formally named here.
  • References (61)
    61 references, page 1 of 7

    from Givetian borehole samples from Poland, including the species Homoctenus hanusi Bou ek, 1964, H. krestovnikovi Lyashenko, 1957, H. tokmovensis Lyashenko, 1959, and Polycylindrites tenuigradatus Lyashenko, 1959.

    ALBERTI GKB (1993) Dacryoconaride und homoctenide Tentaculiten des Unter und MittelDevons. Courier Forschungsinstitut Senckenberg, 158, 1-229.

    BABIN C, REGNAULT S (1978) Presence de Devonien superieur fossilifere dans la partie centrale du synclinorium median armoricain; consequences structurales et paleogeographiques. Bulletin de la Societé Géologique de France, 20, 112-114.

    BECKER RT, HOUSE MR (1994) Kellwasser events and goniatite successions in the Devonian of the Montagne Noire with comments on possible causations. Courier Forschungsinstitut Senckenberg, 169, 45-77.

    BLUMENSTENGEL H (1975) Mikropalaeontologische Untersuchungen in der Harzgeroeder und Blankenburger Zone. Zeitschrift fuer Geologische Wissenschaften, 3, 327-331.

    BOND DPG, WIGNALL PB (2005) Evidence for Late Devonian (Kellwasser) anoxic events in the Great Basin, western United States. In: Understanding Late Devonian and Permian-Triassic Biotic and Climatic Events: Towards an Integrated Approach (eds. Over DJ, Morrow JR, Wignall PB). Developments in Palaeontology and Stratigraphy 20, 225-262.

    BOND DPG, WIGNALL PB, RACKI G (2004) Extent and duration of marine anoxia during the Frasnian-Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France. Geological Magazine, 141, 173-193.

    BOU EK B (1964) The tentaculites of Bohemia; their morphology, taxonomy, ecology, phylogeny and biostratigraphy. Czechoslovakian Academy of Sciences, Prague.

    BUGGISCH W (1972) Zur Geologie und Geochemie der Kellwasserkalke und ihrer begleitenden Sedimente (Unteres Oberdevon). Abhandlungen des Hessischen Landesamtes fuer Bodenforschung, 62, 1-67.

    CASIER J-G (2003) Ostracods from the late Frasnian of the Neuville railway section (Dinant Synclinorium, Belgium); relation to the Kellwasser Event. Bulletin de la Societé Géologique de France, 174, 149-157.

  • Metrics
    0
    views in OpenAIRE
    0
    views in local repository
    149
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    White Rose Research Online - IRUS-UK 0 149
Share - Bookmark