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Two recent explanations for the Paleocene-Eocene Thermal Maximum (PETM)
Oxytropidoceras posted a topic in Fossil News
Orbit of Doom: The Surprising Connection Between Earth’s Orbital Patterns and an Ancient Warming Event, SciTechDaily, Pennsylvania State University, January 15, 2023 The open access paper is: Li, M., Bralower, T.J., Kump, L.R., Self-Trail, J.M., Zachos, J.C., Rush, W.D. and Robinson, M.M., 2022. Astrochronology of the Paleocene-Eocene Thermal Maximum on the Atlantic Coastal Plain. Nature communications, 13(1), pp.1-13. Another explanation for the PETM is: New imaging finds trigger for massive global warming 56 million years ago 56 million years ago, hot magma scorched the sediments under the Atlantic seafloor. Howard Lee, ArsTechnica, January 13, 2023 The open access publications are: Jones, S.M., Hoggett, M., Greene, S.E. and Dunkley Jones, T., 2019. Large Igneous Province thermogenic greenhouse gas flux could have initiated Paleocene-Eocene Thermal Maximum climate change. Nature Communications, 10(1), pp.1-16. Knight, H., Jones, S.M., Hopper, J.R., O'Reilly, B.M. and Funck, T., 2022. Project PORO-CLIM initial results: Towards a new oceanic crustal record of magma productivity throughout initiation of the North Atlantic Igneous Province (No. EGU22-12380). Copernicus Meetings. Yours, Paul H.-
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- astrochronology
- carbon cycle
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Paleobiology of the Upper Cretaceous-Lower Paleogene Trans-Saharan Seaway, Mali (open access publication)
Oxytropidoceras posted a topic in Fossil News
O'Leary, M.A., Bouaré, M.L., Claeson, K.M., Heilbronn, K., Hill, R.V., McCartney, J.A., Sessa, J.A., Sissoko, F., Tapanila, L., Wheeler, E.A. and Roberts, E.M., 2019. Stratigraphy and paleobiology of the Upper Cretaceous-Lower Paleogene sediments from the Trans-Saharan Seaway in Mali. (Bulletin of the American Museum of Natural History, no. 436). http://digitallibrary.amnh.org/handle/2246/6950 Warning: the low-resultion PDF is about 204 MB and the high-resolution PDF is about 383 MB. Yours, Paul H.- 2 replies
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- bone beds
- cretaceous
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Life and death in the Chicxulub impact crater: A record of Paleocene-Eocene Thermal Maximum
Oxytropidoceras posted a topic in Fossil News
The open access paper is: Smith, V., Warny, S., Grice, K., Schaefer, B., Whalen, M.T., Vellekoop, J., Chenot, E., Gulick, S.P., Arenillas, I., Arz, J.A. and Bauersachs, T., 2020. Life and death in the Chicxulub impact crater: A record of the Paleocene-Eocene Thermal Maximum. Climate of the Past Discussions, pp.1-17. Related open access papers are: Smith, V., Warny, S., Jarzen, D.M., Demchuk, T., Vajda, V. and Expedition 364 Science Party, 2020. Palaeocene–Eocene miospores from the Chicxulub impact crater, Mexico. Part 1: spores and gymnosperm pollen. Palynology, 44(3), pp.473-487 Smith, V., Warny, S., Jarzen, D.M., Demchuk, T., Vajda, V. and Gulick, S.P., 2020. Paleocene–Eocene palynomorphs from the Chicxulub impact crater, Mexico. Part 2: angiosperm pollen. Palynology, pp.1-31. More papers of Dr. Vann Smith More papers Sophie Warny Yours, Paul H.-
- chicxulub impact crater
- eocene
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Hey, I'm writing a paper on elephant evolution and am a bit murky on the Paleocene-Eocene specimens. I've read that after the PT-thermal maximum, Eocene mammals became the dwarfed counterparts of their Paleocene counterparts. But it seems to me like there's a trend of size increase, not decrease for the Proboscidea ancestors. Am I missing something? Thanks!
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Fossil Hunting the PETM of Chuckanut Near BC Canada
Zenmaster6 posted a topic in Fossil Hunting Trips
Went fossil hunting near Chuckanut BC Canada. These species are I believe Sassafras, Alder, Sabalites Campbelli And for the fern someone said Cyathea But I feel its Neuropteris Flexuosa -
This ancient climate catastrophe is our best clue about Earth’s future Sarah Kaplan, the Washington Post, March 27, 2018 https://www.washingtonpost.com/news/speaking-of-science/wp/2018/03/27/this-ancient-climate-catastrophe-is-our-best-clue-about-earths-future/?utm_term=.9b31f277e13c https://www.sciencealert.com/this-ancient-climate-catastrophe-may-provide-clues-for-for-facing-ours Yours, Paul H.
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- bighorn basin
- eocene
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