Dinosaurs would have been after the period of Adam and Eve. They would have been destroyed by the great flood.. or a meteor.. or both...

It could be that the meteor CAUSED the great "flood"

The general consensus amongst most christians is the mentioning of animals in the Bible:

"The Bible refers to many the common animals we know today. The list includes lions, wolves, bears, sheep, cattle and dogs along with various kinds of birds, rodents, reptiles, and insects. What is interesting is that this extensive list includes three animals that we no longer recognize. These three are (in the original Hebrew language) tanniyn, b@hemowth and livyathan.

Tanniyn = Dragon, or Dinosaur
Behemoth = Brachiosaurus
Leviathan = Kronosaurus. "