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Showing results for tags 'jawed vertebrates'.
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Fish got their jaws millions of years earlier than previously thought Meet the spiny, ancient Fanjingshania renovatais—likely the oldest discovered fish ancestor with jaws. Laura Baias, Live Science Ancient 'shark' from China is humans’ oldest jawed ancestor Palaeontologists discover a 439-million-year-old 'shark' that forces us to rethink the timeline of vertebrate evolution Chinese Academy of Sciences, Eureka Alert, October 3, 2022 The paper is: Andreev, P.S., Sansom, I.J., Li, Q., Zhao, W., Wang, J., Wang, C.C., Peng, L., Jia, L., Qiao, T. and Zhu, M., 2022. Spiny chondrichthyan from the lower Silurian of South China. Nature, 609(7929), pp.969-974. Yours, Paul H.
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Four hundred million year old fish fossil has earliest example of teeth
Oxytropidoceras posted a topic in Fossil News
Advanced technology sheds new light on evolution of teeth by Uppsala University, PhysOrg, July 9, 2020 https://phys.org/news/2020-07-advanced-technology-evolution-teeth.html Scientists trace the origin of our teeth from the most primitive jawed fish, European Synchrotron Radiation Facility, July 9, 2020 https://www.sciencedaily.com/releases/2020/07/200709141606.htm https://www.eurekalert.org/pub_releases/2020-07/uu-ats070820.php Four hundred million year old fish fossil has earliest example of teeth by Bob Yirka, June 24, 2015 https://phys.org/news/2015-06-million-year-fish-fossil-earliest.html The papers are: Vaskaninova, V., Chen, D., Tafforeau, P., Johanson, Z., Ekrt, B., Blom, H., and Ahlberg, P.E., 2020. Marginal dentition and multiple dermal jawbones as the ancestral condition of jawed vertebrates. Science. 369(6500) pp.211-216. https://science.sciencemag.org/content/369/6500/211 Rücklin, M. and Donoghue, P.C., 2015. Romundina and the evolutionary origin of teeth. Biology Letters, 11(6), p.20150326. https://royalsocietypublishing.org/doi/abs/10.1098/rsbl.2015.0326 http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.781.8298&rep=rep1&type=pdf https://research-information.bris.ac.uk/files/55864918/Rucklin_2015.pdf Yours, Paul H.-
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