Dinosaur Classification Of Major Groups Britannica Despite current interest in estimating the diversity of fossil and extant groups, little effort has been devoted to estimating the diversity of dinosaurs. here we estimate the diversity of nonavian dinosaurs at ≈1,850 genera, including those that remain to be discovered. with 527 genera currently described, at least 71% of dinosaur genera. Hans dieter sues, curator of vertebrate paleontology at the smithsonian national museum of natural history, points to the oft cited statistic that around 81 percent of marine species and 70.
Dinosaur Diversity By Ntamura On Deviantart Dinosaurs in decline 10 million years before the k pg event. our results indicate that the diversity dynamics of dinosaurs conform to a time variable birth–death model including several shifts. The extinction of non avian dinosaurs 65 million years ago is a perpetual topic of fascination, and lasting debate has focused on whether dinosaur biodiversity was in decline before end cretaceous. Dinosaurs originated ~245 million years ago (mya) but did not diversify until some time in the late triassic. followed by a span of some 20 myr during which dinosaurs existed at low diversity,. So it seems reasonable to guess that there were between 50,000 and 500,000 species of dinosaurs – without including mesozoic birds, which might double the diversity. so many fossils. shutterstock.
A Brief History Of Dinosaurs Live Science Dinosaurs originated ~245 million years ago (mya) but did not diversify until some time in the late triassic. followed by a span of some 20 myr during which dinosaurs existed at low diversity,. So it seems reasonable to guess that there were between 50,000 and 500,000 species of dinosaurs – without including mesozoic birds, which might double the diversity. so many fossils. shutterstock. Here we estimate the diversity of nonavian dinosaurs at ≈1,850 genera, including those that remain to be discovered. with 527 genera currently described, at least 71% of dinosaur genera thus. The diversity of nonavian dinosaurs is estimated at ≈1,850 genera, including those that remain to be discovered, suggesting that dinosaurs as a whole were not in decline in the 10 million years before their ultimate extinction. despite current interest in estimating the diversity of fossil and extant groups, little effort has been devoted to estimating the diversity of dinosaurs. here we.
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