Late Ordovician Mass Extinction: Earth, fire and ice [PDF]
National Science Review, 2023 ABSTRACT The Late Ordovician Mass Extinction was the earliest of the ‘big’ five extinction events and the earliest to affect the trajectory of metazoan life. Two phases have been identified near the start of the Hirnantian period and in the middle.
David Harper
exaly +4 more sources
The Late Ordovician extinction conundrum [PDF]
Estonian Journal of Earth Sciences, 2023 The Late Ordovician mass extinction (LOME) has long been known for its association with the Hirnantian glaciations. Two extinction pulses seem to reflect global cooling and warming, respectively. The effects climate change had on Ordovician life are well
Christian M. Ø. Rasmussen
doaj +2 more sources
Large mass-independent sulphur isotope anomalies link stratospheric volcanism to the Late Ordovician mass extinction [PDF]
Nature Communications, 2020 Identification of stratospheric volcanic eruptions in the geological record and their link to mass extinction events during the past 540 million years remains challenging.
Dongping Hu +5 more
doaj +2 more sources
Sedimentary Mercury Enrichments as a Tracer of Large Igneous Province Volcanism
Geophysical Monograph Series, Page 247-262., 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.
Lawrence M. E. Percival +3 more
wiley +10 more sources
Phylogenetic Clustering of Origination and Extinction across the Late Ordovician Mass Extinction. [PDF]
PLoS ONE, 2015 Mass extinctions can have dramatic effects on the trajectory of life, but in some cases the effects can be relatively small even when extinction rates are high.
Andrew Z Krug, Mark E Patzkowsky
doaj +2 more sources
High potential for weathering and climate effects of non-vascular vegetation in the Late Ordovician [PDF]
Nature Communications, 2016 Early non-vascular vegetation may have caused an interval of glaciations in the Late Ordovician by enhancing global chemical weathering. Here, by simulating the organisms with a spatially explicit, process-based model, the authors propose that Ordovician
P. Porada +8 more
doaj +2 more sources
Late Ordovician cephalopods from Morocco and their implications
Swiss Journal of PalaeontologyThe present paper describes the latest cephalopod fauna from the Upper Ordovician in the Anti-Atlas region, Morocco. Two species are reported herein belonging to two genera including one new species, Tafadnatoceras elfechtense sp. nov.
Xiang Fang +12 more
doaj +4 more sources
Global palaeogeographical implication of acritarchs in the Upper Ordovician [PDF]
Estonian Journal of Earth Sciences, 2023 The EarlyâMiddle Ordovician peri-Gondwana and Baltica acritarch provinces are easily recognizable, illustrating a clear provincialism of global phytoplankton.
Yan Kui +4 more
doaj +1 more source
The Irish Ordovician brachiopod fauna: A taxonomic renaissance [PDF]
Estonian Journal of Earth Sciences, 2023 Despite its small areal extent, the island of Ireland exposes eight Caledonian tectonic terranes; six of them contain Ordovician brachiopod assemblages. These terranes record the early phases and destruction of the Iapetus Ocean through the occurrence of
David A. T. Harper
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Evolution of prototype basin and change of tectonic-sedimentary pattern in Paleozoic, Ordos Basin
Shiyou shiyan dizhi, 2022 The Ordos Basin is a craton basin developed based on the Precambrian rift system during Permian. It has experienced two stages of evolution including the Early Paleozoic craton marginal depression and Late Paleozoic intra-craton depression.
Faqi HE, Fubin WANG, Liguo GUO, Chuan AN
doaj +1 more source