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Good evening to all participants! I offer for exchange 10 fragments of fish shells of the Devonian period. Everything in the photos is one lot. What is interesting to me: first of all, marine reptiles and dinosaurs, and also I am interested in the teeth of megalodon, Crinoids and ammonites. Surely I missed something - I ask you, do not hesitate to write to me in private messages - i will glad to talk. Best regards, Svetlana
LabRatKing posted a topic in Fossil NewsVia Sci-News: Osteostraci, the jawless sister group to all jawed vertebrates, had adaptations for passive control of water flow around the body, according to new research led by the University of Bristol. http://www.sci-news.com/paleontology/ecologically-diversified-osteostraci-08916.html Full original paper-no paywall: Computational Fluid Dynamics Suggests Ecological Diversification among Stem-Gnathostomes https://www.cell.com/current-biology/fulltext/S0960-9822(20)31362-2 Generalized translation: Armored fish developed streamlining and