Artistic depiction of an meteorite about to hit the earth 60 million year's ago. The impact theory is only one of several theories trying to explain the extinction of the dinosaurs.
Fossil of an upper Cretaceous plant found in Long Island, N.Y,. USA.
Multituberculates were able to eat flowering plants that emerged during the late Cretaceous period.
The researchers used a 3D software to calculate tooth complexity as shown in this colour patched picture of a Multituberculate fossil.
Exhibit from the Canadian Museum of Nature showing two Multituberculates. Owing to their advanced teeth, they had an advantage over other mammals who had to compete for food with dinosaurs, researchers found.
Artist's conception depicts a multituberculate in its natural habitat at the time of the dinosaurs.
Multituberculates survived another 30 million years before they were outcompeted by other mammals like this contemporay sugar glider from the marsupial family.
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