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New remains of a large Ichthyosaur from the Lower Jurassic of the Atacama Desert have been described. The fossils although fragmented, consist of dentary and rostrum remains and at least 11 teeth. The remains are assigned to Temnodontosaurus sp due to the similarities. It is the first marine macropredator in the Lower Jurassic of Northern Chile and the first example of the genus in the southern hemisphere Otero, R., Sepulveda, P. 2020 https://www.sciencedirect.com/science/article/pii/S089598111930519X#sec6
Oxytropidoceras posted a topic in Fossil NewsOldest meteorite collection on Earth found in one of the driest places, Geological Society of America Sciencedaily, May 23, 2019 https://www.sciencedaily.com/releases/2019/05/190523130200.htm Earth's Oldest Meteorite Collection Just Found in the Driest Place on the Planet By Brandon Specktor, May 24, 2019 https://www.livescience.com/65558-atacama-desert-has-meteors-for-days.html The paper is: A. Drouard, J. Gattacceca, A. Hutzler, P. Rochette, R. Braucher, D. Bourlès, ASTER Team, M. Gounelle, A. Morbidelli, V. Debaille, M. Van Ginneken, M. Valenzuela, Y. Quesnel, R. Martinez. The meteorite flux of the past 2 m.y. recorded in the Atacama Desert. Geology, May 22, 2019. Open Access https://pubs.geoscienceworld.org/gsa/geology/article/570818/the-meteorite-flux-of-the-past-2-m-y-recorded-in https://arxiv.org/abs/1904.12644 Yours, Paul H.
Hi all, I have here a six-gill cow shark tooth (Hexanchus) from the Atacama desert. I do have a few questions about it: What is the species name? What position in the jaw is it? Exactly how old is it? (I'd like this to be as precise as possible; if you could tell me the precise stage it would be perfect!) Thanks for the help! Max