Results 11 to 20 of about 3,963,579 (218)

Large Igneous Province Record Through Time and Implications for Secular Environmental Changes and Geological Time‐Scale Boundaries

open access: yesGeophysical Monograph Series, Page 1-26., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst   +8 more
wiley  

+13 more sources

Global seawater redox trends during the Late Devonian mass extinction detected using U isotopes of marine limestones

open access: yesEarth and Planetary Science Letters, 2018
The Late Devonian extinction ranks as one of the ‘big five’ Phanerozoic extinctions affecting up to 80% of marine species and is characterized by two major extinction events that are separated by δ 238 U) across a ∼7 My interval of well-dated Upper ...
D. A. White   +3 more
semanticscholar   +3 more sources

A new elpistostegalian from the Late Devonian of the Canadian Arctic. [PDF]

open access: yesNature, 2022
Stewart TA   +4 more
europepmc   +2 more sources

Late Devonian (Famennian) Chondrichthyes from Mexico [PDF]

open access: yesJournal of Vertebrate Paleontology, 2019
The Paleozoic vertebrate fossil record from Mexico is very scarce and strongly biased by rock exposure, composed mainly of upper Paleozoic (Carboniferous and Permian) outcrops (e.g., Sánchez-Zavala et al., 1999; Poole et al., 2005; González- Rodríguez et al., 2013).
Carlos Martínez-Pérez   +5 more
openaire   +2 more sources

A volcanic scenario for the Frasnian–Famennian major biotic crisis and other Late Devonian global changes: More answers than questions?

open access: yes, 2020
Although the prime causation of the Late Devonian Frasnian–Famennian (F–F) mass extinction remains conjectural, such destructive factors as the spread of anoxia and rapid upheavals in the runaway greenhouse climate are generally accepted in the Earth ...
G. Racki
semanticscholar   +1 more source

Phosphorus-cycle disturbances during the Late Devonian anoxic events

open access: yesGlobal and Planetary Change, 2020
The Late Devonian was marked by repeated faunal crises and episodes of geographically widespread marine anoxia, and featured one of the ‘Big Five’ mass extinctions of the Phanerozoic Aeon during the Frasnian–Famennian transition.
L. Percival   +7 more
semanticscholar   +1 more source

Evolution of leaf-form in land plants linked to atmospheric CO2 decline in the Late Palaeozoic era [PDF]

open access: yes, 2001
The widespread appearance of megaphyll leaves, with their branched veins and planate form, did not occur until the close of the Devonian period at about 360 Myr ago.
AH Knoll   +32 more
core   +1 more source

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

open access: yes, 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
core   +1 more source

Extensive marine anoxia associated with the Late Devonian Hangenberg Crisis

open access: yesEarth and Planetary Science Letters, 2020
The global Hangenberg Crisis near the Devonian-Carboniferous boundary (DCB) represents one of the major Phanerozoic mass extinction events, which shaped the roots of modern vertebrate biodiversity.
Feifei Zhang   +11 more
semanticscholar   +1 more source

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