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An early Miocene extinction in pelagic sharks
Oxytropidoceras posted a topic in Fossil NewsMysterious event nearly wiped out sharks 19 million years ago By Yasemin Saplakoglu, Live Science, June 3, 2021 "It's unknown whether the ancient sharks died off in a single day, weeks, years or even thousands of years." The paper is: Elizabeth C. Sibert and Leah D. Rubin, 2021 An early Miocene extinction in pelagic sharks Science 04 Jun 2021: Vol. 372, Issue 6546, pp. 1105-1107 DOI: 10.1126/science.aaz3549 Yours, Paul H.
New, Deeper Depth Limit for Deep-sea Marine Burrows
Oxytropidoceras posted a topic in Fossil NewsNew depth limit for deep-sea marine burrows University of Leeds, January 10, 2018 https://www.sciencedaily.com/releases/2018/01/180110080549.htm “Scientists have found fossil evidence of deep-sea marine life burrowing up to eight meters below the seabed -- four times the previously observed depth for modern deep-sea life.” Ancient outcrops give new depth limit for deep-sea burrows http://www.leeds.ac.uk/news/article/4165/ancient_outcrops_give_new_depth_limit_for_deep-sea_burrows The paper is: S. L. Cobain, D. M. Hodg