The Most Useful Fossils in the World

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Learn more about CuriosityStream at http://curiositystream.com/eons • PBS Member Stations rely on viewers like you. To support your local station, go to http://to.pbs.org/DonateEons • For decades, one of the most abundant kinds of fossils on Earth, numbering in the millions of specimens, was a mystery to paleontologists. But geologists discovered that these mysterious fossils could basically be used to tell time in the deep past. • Thanks as always to Nobumichi Tamura for allowing us to use his wonderful paleoart: http://spinops.blogspot.com/ • Produced for PBS Digital Studios. • Want to follow Eons elsewhere on the internet? • Facebook - / eonsshow • Twitter - / eonsshow • Instagram - / eonsshow • References: • Agematsu S, Uesugi K, Hiroyoshi S, Sashida K. 2017. Reconstruction of the multielement apparatus of the earliest Triassic conodont, Hindeodus parvus, using synchotron radiation X-ray micro-tomography. Journal of Paleontology. • https://doi.org/10.1017/jpa.2017.61 • Briggs DEG, Clarkson ENK, Aldridge, RL. 1983. The conodont animal. Lethaia 16: 1-14. • doi: 10.1111/j.1502-3931.1983.tb01993.x • Dzik J. 1991. Evolution of oral apparatuses in the conodont chordates. Acta Palaeontologica Polonica 36(3): 265-323. • https://app.pan.pl/archive/published/... • Goudemand N, Orchard MJ, Urdy S, Bucher H, Tafforeau P. 2011. Synchotron-aided reconstruction of the conodont feeding apparatus and implications for the mouth of the first vertebrates. PNAS 108(21): 8720-8724. • http://www.pnas.org/content/108/21/8720 • Purnell MA, Donoghue PC. 1997. Architecture and functional morphology of the skeletal apparatus of ozarkodinid conodonts. Philosophical Transations of the Royal Society B 352: 1545-1564. • DOI: 10.1098/rstb.1997.0141 • Purnell MA, Donoghue PC. 1998. Skeletal architecture, homologies and taphonomy of ozarkodinid conodonts. Palaeontology 41(1): 57-102. • https://www.palass.org/sites/default/... • https://www.researchgate.net/publicat... • https://www.sciencedirect.com/topics/...

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