Results 41 to 50 of about 8,694 (221)
Modelling the Late Devonian Climate: Implications for evolution and extinction
, 2021 The Devonian period (419.2 - 358.9 Ma) was characterised by a warm greenhouse climate which transitioned towards glaciation throughout the Late Devonian. This period in Earth’s history was punctuated by repeated environmental and biotic crises.
Mack, Claudia Lilli Jones
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Известия высших учебных заведений: Геология и разведка, 2019 Three stages, namely Middle Devonian (I), Early Late Devonian (II) and Late Late Devonian (III), are distin-guished in the evolution of antiarchs (Placodermi, Antiarchi) in the Middle-Late Devonian of Northern Eurasia.
S. V. Moloshnikov
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The Early Devonian (Emsian) acrotretid microbrachiopod Opsiconidion minor Popov, 1981, from the Alaska/Yukon Territory border and Novaya Zemlya [PDF]
Estonian Journal of Earth Sciences, 2020 New records of the poorly known acrotretid (Biernatidae) microbrachiopod Opsiconidion minor Popov are described from middle Emsian strata of the Ogilvie Formation in east-central Alaska and the adjacent Yukon Territory, Canada, and compared with new ...
Lars E. Holmer +3 more
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A large Middle Devonian eubrachythoracid ‘placoderm’ (Arthrodira) jaw from northern Gondwana
Swiss Journal of Palaeontology, 2021 For the understanding of the evolution of jawed vertebrates and jaws and teeth, ‘placoderms’ are crucial as they exhibit an impressive morphological disparity associated with the early stages of this process.
Melina Jobbins +3 more
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Journal of Palaeogeography, 2015 The present paper addresses two tectonostratigraphic concerns on the Late Paleozoic Tianshan tectonic complex (TTC), Xinjiang, Northwest (NW) China: (1) stratigraphic succession and age constraint of the Bayingou ophiolite mélange, eastern Tianshan ...
Zhong-Qiang Chen +2 more
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, 2021 Late Devonian time was a period of rapid upheaval in the Earth system, including climate change, sea level changes, widespread ocean anoxia, and the Frasnian-Famennian mass extinction; the cause(s) of these changes remain(s) uncertain.
Eric Tohver (9608327) +9 more
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Functional consequences of Palaeozoic reef collapse
Scientific Reports, 2022 Biogenic reefs have been hotspots of biodiversity and evolutionary novelty throughout the Phanerozoic. The largest reef systems in Earth’s history occurred in the Devonian period, but collapsed during the Late Devonian Mass Extinction.
Tom C. L. Bridge +4 more
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Biostratigraphy of the Upper Devonian-Lower Carboniferous deposits in Mighan section, northeast Shahrood, Eastern Alborz [PDF]
Journal of Stratigraphy and Sedimentology Researches, 2019 The Devonian/Carboniferous (DC) transition is characterized by several transgressive/regressive cycles which led to a widespread ocean anoxia known as the Hangenberg Black Shale Event (HBS), close to the D/C boundary a major sea-level fall (Hangenberg ...
Tahere Parvizi +3 more
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Paleomagnetic studies of the Middle-Upper Devonian section of the Voronezh anteclise (Pavlov quarry) [PDF]
Нефтегазовая геология: Теория и практика, 2021 New paleomagnetic determinations are presented for a collection of rocks of the Middle-Upper Devonian (Givetian and Frasnian stages), sampled from an outcrop on the southwestern slope of the Pavlov granite quarry.
Iosifidi A.G., Popov V.V.
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Broad snouted cladoselachian with sensory specialization at the base of modern chondrichthyans
Swiss Journal of Palaeontology, 2023 Throughout the Silurian and Devonian, cartilaginous fish successively evolved their specialized skeletal and dental characteristics, and increasingly refined their sensory systems. The Late Devonian shark taxon Maghriboselache mohamezanei gen. et sp.
Christian Klug +8 more
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