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Showing results for tags 'k-pg extinction'.
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Footprints of birds, pterosaurs, dinosaurs near the K/Pg boundary, Las Encinas Formation, Coahuila, Mexico.
Oxytropidoceras posted a topic in Fossil News
There is a very interesting paper about the tracks of footprints of birds, pterosaurs, dinosaurs found just below the K/Pg boundary in the Las Encinas Formation, State of Coahuila, Mexico. Although the PDF is in Spanish, a more or less usable translation can be obtained using document option of Goggle Translate. The open access paper is: Serrano-Brañas, C., Espinosa-Chávez, B., Flores-Ventura, J., Barrera-Guevara, D., Torres-Rodríguez, E., Cadena-González, D., and Vega, F.J., 2024. Huellas de aves, pterosaurios, dinosaurios y el límite K/Pg en Coahuila, México (Footprints of birds, pterosaurs, dinosaurs and the K/Pg limit in Coahuila, Mexico). Revista-Maya-Geociencias, Febrero 2024. pp. 96-105. LInks to PDFs of Febrero 2024 and other issues of Revista Maya Geociencia A related paper is: Serrano-Brañas, C.I., Espinosa-Chávez, B., Ventura, J.F., Barrera-Guevara, D., Torres-Rodríguez, E. and Vega, F.J., 2022. New insights on the avian trace fossil record from NE Mexico: evidences on the diversity of latest Maastrichtian web-footed bird tracks. Journal of South American Earth Sciences, 113, p.103686. Yours, Paul H.-
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“Chill Factor” – The Volcanic Plot Twist in Dinosaur Extinction
Oxytropidoceras posted a topic in Fossil News
“Chill Factor” – The Volcanic Plot Twist in Dinosaur Extinction SciTechDaily, December 4, 2023 The open access paper is: Callegaro, S., Baker, D.R., Renne, P.R., Melluso, L., Geraki, K., Whitehouse, M.J., De Min, A. and Marzoli, A., 2023. Recurring volcanic winters during the latest Cretaceous: Sulfur and fluorine budgets of Deccan Traps lavas. Science Advances, 9(40), p.eadg8284. Yours, Paul H.-
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https://www.bbc.com/future/article/20220812-dinosaur-extinction-why-did-mammals-survive
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- mammals
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Impacts that produce K-feldspar-rich ejecta blankets correspond to mass extinctions
Oxytropidoceras posted a topic in Fossil News
New open access paper about mass extinctions. Pankhurst, M.J., Stevenson, C.J. and Coldwell, B.C., 2021. Meteorites that produce K-feldspar-rich ejecta blankets correspond to mass extinctions. Journal of the Geological Society. 179, jgs2021-055, 1 December 2021 Yours,-
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- mass extinctions
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K-Pg Impact Spurred the Evolution of the Modern Rainforest
Oxytropidoceras posted a topic in Fossil News
How the Dinosaur-Killing Asteroid Spurred the Evolution of the Modern Rainforest New evidence from fossil plants shows today’s South American rainforests arose in the wake of Earth’s fifth mass extinction. Smithsonian Magazine Prior to the Chicxulub impact, rainforests looked very different Plant fossils from Colombia show a turnover from conifers to today's forests. by Doug Johnson, Ars Technica, April 1, 2021 Paper Carvalho, M.R., Jaramillo, C., de la Parra, F. et al. 2021. Extinction at the end-Cretaceous and the origin of modern Neotropical rainforests. Science. Vol. 372, Issue 6537, pp. 63-68 Related papers Wing, S.L., Herrera, F., Jaramillo, C.A., Gómez-Navarro, C., Wilf, P. and Labandeira, C.C., 2009. Late Paleocene fossils from the Cerrejón Formation, Colombia, are the earliest record of Neotropical rainforest. Proceedings of the National Academy of Sciences, 106(44), pp.18627-18632. Graham, H.V., Herrera, F., Jaramillo, C., Wing, S.L. and Freeman, K.H., 2019. Canopy structure in Late Cretaceous and Paleocene forests as reconstructed from carbon isotope analyses of fossil leaves. Geology, 47(10), pp.977-981. Yours, Paul H.- 1 reply
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- mass extinction
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