Dinosaurs and mammals coexisted during the Mesozoic era. If you count birds as dinosaurs, then they still coexist now in the Cenozoic.
Apart from birds, which are classified as dinosaurs, humans and dinosaurs never coexisted.
Dinosaurs lived during the Mesozoic Era.
Dinosaurs lived during the Mesozoic era.
Paleozonic era
Yes, archaeologists have found numerous bones from dinosaurs underground.
No. the first Dinosaurs were in the Triassic period, which came later
As long as they were plant eaters Dinosaurs don't eat humans because there were still no humans when the dinosaurs roam the earth.
because humans were not around at the time but if they were they would have been dead because of all the carniverous dinosaurs
dinosaurs
dinosaurs roamed the earth about 65 million years ago.
Dinosaurs stated to appear 240 million years ago.
dinosaurs are thought to be extinct but there are lots of places around the world that haven't been explored scientists think there are places where prehistoric creatures still roam.
Because they're using a definition of "dinosaur" that allows them to think that.
I don't know by fossil record but I have a book called walking with the dinosaurs and it said 220 million years ago