Geochemistry, Geophysics, Geosystems, 2022 Widespread marine anoxia triggered by the runoff and recycling of nutrients was a key phenomenon associated with the Frasnian–Famennian (FF) mass extinction.
L. M. E. Percival +9 more
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Conodonta, Trilobita, and Anthozoa near the Late Frasnian Upper Kellwasser Event of the Geipel Quarry section in Schleiz, Thuringian Mountains (Germany) [PDF]
Fossil Record, 2003 New recoveries of Trilobita, Anthozoa and Conodonta from the linguiformis Zone close to the Frasnian/Famennian boundary and Immediately preceding the Upper Kellwasser Event level at Schleiz (Thuringia) are investigated.
D. Weyer, R. Feist, C. Girard
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Astronomically paced climate and carbon cycle feedbacks in the lead-up to the Late Devonian Kellwasser Crisis [PDF]
Climate of the Past, 2023 Repeated carbon isotope excursions and widespread organic-rich shale deposition mark the Middle and Upper Devonian series. Various explanations such as extensive volcanism and land plant evolution have been given for these perturbations and the general ...
N. M. A. Wichern +9 more
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Revista Mexicana de Biodiversidad, 2022 En el estado de Sonora afloran importantes secuencias del Paleozoico Superior con una abundante biota fósil relativamente bien preservada. El objetivo de este trabajo es estudiar los afloramientos localizados en el cerro El Yugo, ubicado en el municipio
Juan José Palafox-Reyes +5 more
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Frontiers in Earth Science, 2021 The Late Devonian Frasnian–Famennian (F–F) mass extinction has been long-time debated by non-volcanic causes, extra-terrestrial impacts, and large igneous province (LIP) eruptions.
Jiawei Zhang +8 more
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A large Late Devonian arthrodire (Vertebrata, Placodermi) from Poland [PDF]
Estonian Journal of Earth Sciences, 2018 The arthrodire placoderm, Dunkleosteus sp., is reported from the Upper Devonian (Frasnian) of the Holy Cross Mountains, Poland. The material comprises partially preserved remains of two individuals found in the Kellwasser-like horizon of the Płucki ...
Piotr Szrek, Olga Wilk
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The Middle-Upper Devonian sandstones of the West Magnitogorsk zone of the Southern Urals
Учёные записки Казанского университета: Серия Естественные науки, 2021 To date, the composition of the Devonian sandstones of the West Magnitogorsk zone has been known from only a few samples. However, given the large thickness of the sections (up to the first kilometers), their number should be increased, up to several ...
A.M. Fazliakhmetov
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Extent and duration of marine anoxia during the Frasnian– Famennian (Late Devonian) mass extinction in Poland, Germany, Austria and France [PDF]
, 2004 – The intensity and extent of anoxia during the two Kellwasser anoxic events has been investigated in a range of European localities using amultidisciplinary approach (pyrite framboid assay, gamma-ray spectrometry and sediment fabric analysis).
Bond, D.P.G., Racki, G., Wignall, P.B.
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Reflection of global events Frasnian epoch in the section of the western slope Polar Urals
Литосфера, 2018 For the first time we carried out a detailed comprehensive study of Frasnian stage in the lower сurrent of the Malaya Usa River located within the Eletskaya structural-formational zone of the Polar Urals.
Dmitrii B. Sobolev, Marina A. Soboleva
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The fate of the homoctenids (Tentaculitoidea) during the Frasnian-Famennian mass extinction (Late Devonian) [PDF]
, 2006 The homoctenids (Tentaculitoidea) are small, conical-shelled marine animals which are amongst the most abundant and widespread of all Late Devonian fossils.
Alberti GKB +48 more
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