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New light on rise of mammals - The Hindu

The ancestor of all primates likely lived alongside large dinosaurs ....

United States , Hell Creek , Stephen Chester , Wilson Mantilla , Brody Hovatter , Brooklyn College , University Of Washington , University Of California Museum Paleontology , Royal Society Open Science , California Museum , ஒன்றுபட்டது மாநிலங்களில் , நரகம் க்ரீக் , ஸ்டீபன் செஸ்டர் , பிராடி ஹோவாட்டர் , ப்ரூக்ளின் கல்லூரி , பல்கலைக்கழகம் ஆஃப் வாஷிங்டன் , பல்கலைக்கழகம் ஆஃப் கலிஃபோர்னியா அருங்காட்சியகம் பேலீயஂடாலொஜீ , அரச சமூகம் திறந்த அறிவியல் , கலிஃபோர்னியா அருங்காட்சியகம் ,

Earliest primate fossils documented, shed light on rise of mammals

Earliest primate fossils documented, shed light on rise of mammals
They are estimated to be 65.9 million years old, about 1,05,000 to 1,39,000 years after the mass extinction event.
Scientists have documented the earliest-known fossil evidence of primates, an advance which sheds light on how life on land recovered after the extinction event 66 million years ago that wiped out the dinosaurs and led to the rise of mammals.
The researchers, including those from the University of Washington in the US, analysed several fossils of Purgatorius the oldest genus in a group of the earliest-known primates called plesiadapiforms.
According to the study, published in the journal Royal Society Open Science, these ancient mammals were small-bodied and ate specialised diets of insects and fruits that varied by species. ....

United States , Hell Creek , Stephen Chester , Wilson Mantilla , Brody Hovatter , Brooklyn College , University Of Washington , University Of California Museum Paleontology , Royal Society Open Science , California Museum , Mass Extinction Event , Earliest Fossils , Primate Fossils , ஒன்றுபட்டது மாநிலங்களில் , நரகம் க்ரீக் , ஸ்டீபன் செஸ்டர் , பிராடி ஹோவாட்டர் , ப்ரூக்ளின் கல்லூரி , பல்கலைக்கழகம் ஆஃப் வாஷிங்டன் , பல்கலைக்கழகம் ஆஃப் கலிஃபோர்னியா அருங்காட்சியகம் பேலீயஂடாலொஜீ , அரச சமூகம் திறந்த அறிவியல் , கலிஃபோர்னியா அருங்காட்சியகம் , நிறை அழிவு நிகழ்வு , ப்ரைமேட் புதைபடிவங்கள் ,

Our earliest primate ancestors rapidly spread after dinosaur extinction

Our earliest primate ancestors rapidly spread after dinosaur extinction
The small, furry ancestors of all primates a group that includes humans and other apes were already taking to the trees a mere 100,000 years after the mass extinction that wiped out the dinosaurs and most other terrestrial animals, according to a new analysis of fossil teeth in the collections of the University of California Museum of Paleontology (UCMP).
The analysis showed that the teeth are the earliest-known fossil evidence of any primate, dating from about 65.9 million years ago 105,000 to 139,000 years after Cretaceous-Paleogene boundary 66 million years ago that signaled the end of the dinosaur era, except for the dinosaurs’ descendants, the birds. ....

New York , United States , Hell Creek , Fort Peck , Gregory Wilson Mantilla , Wilson Mantilla , William Clemens , Brody Hovatter , Paul Renne , Frank Mckeever , Lauren Debey , Stephen Chester , Cathy Mckeever , Jason Moore , Courtney Sprain , William Mitchell , Roland Mundil , Minnesota It Services , Brooklyn College , University Of Florida , Royal Society Open Science , Burke Museum In Seattle , City University Of New York , University Of Washington , Berkeley Geochronology Center , University Of California Museum Paleontology ,

Fossils hint earliest primates lived with dinosaurs

The researchers analyzed several fossils of
Purgatorius, the oldest genus in a group of the earliest-known primates called plesiadapiforms. These ancient mammals were small-bodied and ate specialized diets of insects and fruits that varied by species.
These newly described specimens are central to understanding primate ancestry and paint a picture of how life on land recovered after the Cretaceous-Paleogene extinction event 66 million years ago that wiped out all dinosaurs except for birds and led to the rise of mammals.
The team analyzed fossilized teeth found in the Hell Creek area of northeastern Montana. The fossils, now part of the collections at the University of California Museum of Paleontology, are estimated to be 65.9 million years old, about 105,000 to 139,000 years after the mass extinction event. ....

New York , United States , Hell Creek , Gregory Wilson Mantilla , Stephen Chester , Frank Mckeever , Cathy Mckeever , William Clemens , Brody Hovatter , University Of California , Minnesota It Services , Brooklyn College , University Of New Mexico , Burke Museum Of Natural History Culture , University Of Florida , National Science Foundation , Leakey Foundation , Royal Society Open Science , City University Of New York , University Of Washington , Uc Museum Of Paleontology , Berkeley Geochronology Center , University Of California Museum Paleontology , Havranek Charitable Family Fund , California Museum , Gregory Wilson ,

Fossilized teeth flesh out the tale of the earliest primates

An artist’s rendering shows the early primate species known as Purgatorius mckeeveri. (Andrey Atuchin Illustration via Burke Museum)
The shapes of fossilized teeth from 65.9 million-year-old, squirrel-like creatures suggest that the branch of the tree of life that gave rise to us humans and other primates flowered while dinosaurs still walked the earth.
That’s the claim coming from a team of 10 researchers across the U.S., including biologists at Seattle’s Burke Museum and the University of Washington.
In a study published by Royal Society Open Science, the team lays out evidence that an ancient group of primates known as plesiadapiforms must have emerged before the mass-extinction event that killed off the dinosaurs. (Technically, modern-day birds are considered the descendants of dinosaurs, but that’s another story.) ....

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