Paleozonic era
Yes, archaeologists have found numerous bones from dinosaurs underground.
Dinosaurs lived during the Mesozoic era.
As long as they were plant eaters Dinosaurs don't eat humans because there were still no humans when the dinosaurs roam the earth.
dinosaurs
dinosaurs roamed the earth about 65 million years ago.
Dinosaurs stated to appear 240 million years ago.
Because they're using a definition of "dinosaur" that allows them to think that.
Dinosaurs and mammals coexisted during the Mesozoic era. If you count birds as dinosaurs, then they still coexist now in the Cenozoic.
I don't know by fossil record but I have a book called walking with the dinosaurs and it said 220 million years ago
Yes. Between around 230million years ago and 65million years ago dinosaurs (more than 1000 different species discovered) were the dominant terrestrial vertebrates.
No. the first Dinosaurs were in the Triassic period, which came later