6533b7d8fe1ef96bd126b731
RESEARCH PRODUCT
The biostratigraphical and palaeogeographical framework of the earliest diversification of tetrapods (Late Devonian)
Maurice StreelGaël ClémentAlain BlieckHenning BlomJacques ThorezErvīns LukševičsHervé LelièvreGavin C. Youngsubject
010506 paleontologyDiversification (finance)GeologyOcean Engineering010502 geochemistry & geophysics01 natural sciencesDevonianPaleontologyTetrapod (structure)Late Devonian extinction14. Life underwater[SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/PaleontologyGeology0105 earth and related environmental sciencesWater Science and Technologydescription
International audience; The earliest diversification of tetrapods is dated as Late Devonian based on 10 localities worldwide that have yielded bone remains. At least 18 different species are known from these localities. Their ages span the "middle"-late Frasnian to latest Famennian time interval, with three localities in the Frasnian, one at the F/F transition (though this one is not securely dated) and six in the Famennian. These localities encompass a wide variety of environments, from true marine conditions of the nearshore neritic province, to fluvial or lacustrine conditions. However, it does not seem possible to characterize a freshwater assemblage in the Upper Old Red Sandstone based upon vertebrates. Most of the tetrapod-bearing localities (8 of 10) were situated in the eastern part of Laurussia (= Euramerica), one in North China and one in eastern Gondwana (Australia), on a pre-Pangean configuration of the Earth, when most oceanic domains, except Palaeotethys and Panthalassa, had closed.
year | journal | country | edition | language |
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2007-01-01 |