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The taxonomic grade "Prosimii" (prosimians) is no longer considered phylogenetically valid, it's a paraphyletic grouping of primates that are "neither monkeys nor apes". However, it is entirely possible that early primates lived during the Cretaceous, the last epoch of the Mesozoic, when dinosaurs ruled the Earth. No fossils have been found (some questionable material belonging to an early plesiadapiform Purgatorius has been attributed as Cretaceous in origin, but it's possible that this material was accidentally re-buried in a Cretaceous stratum at a later date). The earliest definite primate known from the fossil record is Plesiadapis, which lived some 55 million years ago, 10 million years after the dinosaurs went extinct. However, molecular clock studies indicate that the primate order may have arisen 85 million years ago, during the Late Cretaceous. Certainly, primate ancestors were alive at this time, though whether they could be placed in the order Primates is still an open question. It is very likely that if you were to see one of these early primates/primate ancestors today, you would think it was some strange kind of shrew, rather than a primate as such, since they did not yet physically resemble the monkeys, apes or even lemurs of later epochs.
What else can I help you with?
Were primates present during primeval times?
yes
Did primates evolve before dinosaurs became extinct?
no
What was the time when humans were existing with dinosaurs?
Humans never existed with the Dinosaurs. While the dinosaurs lived the largest mammals were about the size of modern rats and were mostly nocturnal (active while the dinosaurs slept). It was not until all of the dinosaurs had died that mammals could risk coming out of hiding during the daytime. The dinosaurs had been dead for about 10 million years before the first primates evolved, and humans evolved from primates about 54 million years after that (dinosaurs had been dead roughly 64 million years before the first humans lived).
What lived when dinosaurs lived?
mammals,birds ,insects,primates , and sea creatures
How many crocodiles were there during the Dinosaurs times?
about 300 million
How do you use Paleontology in a sentence?
It was a remarkable project, and the book instantly became a valuable contribution to paleontology. The scientific study of fossils is known as paleontology.
Two flying dinosaurs?
There were no true dinosaurs that could fly. But two flying creatures that lived during the dinosaur times were Pterodactyl and Ornithocheirus.
What were dinosaurs like in medieval times?
There were no dinosaurs in medieval times.
What is the date of the earliest known primate?
The earliest known primates are believed to have appeared around 65 million years ago, during the late Cretaceous or early Paleocene epoch. Fossil evidence suggests that these early primates were small, tree-dwelling mammals. Notable genera include Purgatorius, which is often considered one of the first primates or primate-like mammals. This timing aligns with the extinction of the dinosaurs, allowing for the diversification of mammalian species, including primates.
Are fish dinosaurs?
No, fish are not considered dinosaurs. Dinosaurs were land-dwelling reptiles that lived millions of years ago, whereas fish are aquatic animals. Both groups are part of the broader group known as vertebrates, but they belong to different evolutionary lineages.
Were normal birds alive during the Dinosaur times?
birds are dinosaurs some birds that lived with dinosaurs were archeopteryx, confuisosornis, and avivisaurus these creatures are dinosaurs all birds were dinosaurs
During which prehistoric ere did dinosaurs roam the earth?
Dinosaurs and mammals coexisted during the Mesozoic era. If you count birds as dinosaurs, then they still coexist now in the Cenozoic.
