De første primater |
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Prutterhunden
Staff Oprettet: 14 Okt 2007 Sted: Frederiksberg Status: Offline Point: 30306 |
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Sendt: 26 Feb 2021 kl. 18:53 |
De tidligste primater - oprindelsen til bl.a. mennesket - dukkede op samtidigt med, at dinosauerne uddøde for 66 millioner år siden. Det er flere millioner år tidligere end hidtil antaget.
Wiki: "Primaterne udviklede sig fra forfædre, der levede i træerne i tropiske skove. De tidligste egentlige primater kendes fra fund af 56 millioner år gamle fossiler. Ordet primat stammer fra det latinske 'primus' (den første) og sigter til mennesket som kronen af skabelsen." "It's time to update the primate family tree - again. Scientists recently discovered fossilized evidence of humans' oldest ancestor ever. In a new study, a team of paleontologists analyzed tooth samples found in Montana and determined plesiadapiforms, an ancient taxon including primates' oldest ancestor, likely emerged 65.9 million-years-ago and lived alongside dinosaurs. Why it matters - When it comes to understanding the deep history of primates - and eventually humans - this discovery could be huge because it suggests to scientists that this early mammal was thriving before and after the great extinction of dinosaurs. Prior to this discovery, the oldest known primate fossil to date was a fossil discovered in China in 2013 that dates back 55-million-years. Stephen Chester is a co-lead author on this study and an assistant professor at Brooklyn College. He said in a statement that finding not only one ancient taxon but two distinct ones from this far back in history gives researchers an important glimpse into how these mammals survived and thrived in ancient times." Det indikerer, at der er endnu tidligere primater. An artist's interpretation of what this ancient mammalian relative might have looked like.Andrey Atuchin New-found oldest primate ancestor watched the dinosaurs die (inverse.com) Primater - Wiki |
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