Dinosaurs are a diverse group of animals of the clade Dinosauria that first
appeared during the .... Instead, dinosaurs, like many extinct forms of reptile sub-
groups, did not exhibit characteristic...
May 17, 2001 ... Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous
Period), after living on Earth for about 165 million years. If all of ...
Full Answer. Because the dinosaurs died out in a relatively short period of time,
scientists surmise that some sort of global disaster had caused this massive ...
Around the end of the Cretaceous Period.Dinosaurs became extinct at the end of
the Mesozoic Era 65 million years ago.
Another theory was that dinosaurs' bodies became too big to be operated by ...
But in the late Mesozoic Era that corresponds with the extinction of the dinosaurs,
Apr 28, 2008 ... ... earthquakes to the extinction of the dinosaurs and many other creatures at the
end of the Cretaceous period and the beginning of the Tertiary ...
www.ask.com/youtube?q=In Which Era Did Dinosaurs Become Extinct&v=Y8Ij9xboreA
Jun 25, 2013 ... Complete and instantaneous extinction is no longer the theory. ... See how a T-
Rex survives impact as some animals did, only to succumb to ...
www.ask.com/youtube?q=In Which Era Did Dinosaurs Become Extinct&v=83GjbDC6cYY
Jul 22, 2015 ... Dinosaurs documentary: when did dinosaurs become extinct. ... end of the
Cretaceous Period), after living on Earth for about 165 million years.
At the end of the Triassic Period there was a mass extinction, the causes of ... that
dinosaurs evolved independently in different parts of the world, becoming ...
Sixty-five million years ago the last of the non-avian dinosaurs went extinct. So
too did the giant mosasaurs and plesiosaurs in the seas and the pterosaurs in the