Results 11 to 20 of about 399,927 (153)
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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Did selection for seed traits across the Cretaceous/Paleogene boundary sort plants based on ploidy?
Acta Palaeobotanica, 2022 Paleobotanists debate whether the Cretaceous/Paleogene boundary (KPB) event was selective. As the hypothesis that the KPB event selected for plants with fast-return leaf economic traits (e.g.
Keith Berry, Ganesh K. Jaganathan
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Geochemistry, Geophysics, Geosystems, 2020 Deccan Traps flood basalt volcanism affected ecosystems spanning the end‐Cretaceous mass extinction, with the most significant environmental effects hypothesized to be a consequence of the largest eruptions.
Isabel M. Fendley +10 more
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Cambridge Prisms: Extinction, 2023 The Cretaceous–Paleogene (K–Pg) mass extinction was geologically instantaneous, causing the most drastic extinction rates in Earth’s History. The rapid species losses and environmental destruction from the Chicxulub impact at 66.02 Ma made the K–Pg the ...
Peter Wilf +2 more
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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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Arctic East Siberia had a lower latitude in the Pleistocene
Anais da Academia Brasileira de Ciências, 2007 Remains of mammoths in Arctic East Siberia, where there is not sufficient sunlight over the year for the growth of the plants on which these animals feed, indicate that the latitude of this region was lower before the end of the Pleistocene than now ...
Willy Woelfli, Walter Baltensperger
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Permian-Triassic insect diversity revealed by fossils from China [PDF]
BIO Web of Conferences, 2023 Most of the research on Paleoentomology focuses on describing morphology and classification of one species of fossil insects. However, there is little information on the temporal diversity of insects during the Permian and Triassic periods.
Wang Peiran
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Decoupling of morphological disparity and taxic diversity during the adaptive radiation of anomodont therapsids [PDF]
, 2013 Adaptive radiations are central to macroevolutionary theory. Whether triggered by acquisition of new traits or ecological opportunities arising from mass extinctions, it is debated whether adaptive radiations are marked by initial expansion of taxic ...
Anderson MJ +7 more
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Remote Sensing, 2022 In this study, we attempted to calculate the extinction parameters of PM2.5 using images from a commercial camera. The photo pixels provided information on the characteristics of the objects (i.e., the reflectivity, transmittance, or extinction ...
Juseon Shin, Dukhyeon Kim, Youngmin Noh
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Acta Palaeobotanica, 2019 The Cretaceous-Paleogene (K-Pg) boundary Chicxulub impact is supposed to have produced a nearly decade-long impact winter which resulted in a mass-extinction event among dicot angiosperms but which left pteridophytes comparatively unaffected.
KEITH BERRY
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