Mesozoic Era and Its Dinosaurs Flashcards
1
Q
Q: When did the Mesozoic Era begin?
A
A: Over 250 million years ago with the Triassic Period.
2
Q
Q: How long were non-avian dinosaurs around?
A
A: Nearly 180 million years.
3
Q
Q: What often happens to individual dinosaur species over time?
A
A: They either go extinct or evolve into new species, typically lasting only a few million years.
