Chapter 22 - Mesozoic Earth and Life History Flashcards
1
Q
What was the age of dinosaurs?
A
Mesozoic era
2
Q
When did the first dinosaurs appear?
A
251 M.y ago
3
Q
When did the dinosaurs dissapear
A
66 M.y ago
4
Q
Were dinosaurs and humans living together?
A
NO. Dinosuars were exctinct 66 M.y ago, humans just came 1.6m.y
5
Q
What was a reptile-bird fossil
A
pterosaurs, found in early jurassic
6
Q
The was a large rate of extinction (the mass extinction), but then what finished dinosaurs off?
A
Asteroid finished it off
