Most scientists believe that dinosaurs lived from 230 million until 65 million years ago and that they are all currently extinct (except for birds, which many scientists consider to be descended from early therapod dinosaurs). They claim the fossil evidence supports their beliefs. However, there are a number of lines of evidence that point to dinosaurs and man coexisting.  For example, trained scientists have reported seeing a live dinosaur. 
Some Christians reject the Theory of Evolution and the mainstream scientific consensus of the age of the earth. Of those Christians who reject evolution, the Young Earth Creationists believe, based primarily on Biblical sources, but also drawing on archeological and fossil evidence, that dinosaurs were created on the 6th day of the Creation Week, between 6,000 and 10,000 years ago; that they lived in the Garden of Eden in harmony with other animals, eating only plants; that pairs of various dinosaur baramins were taken onto Noah's Ark during the Great Flood and were preserved from drowning; that fossilized dinosaur bones originated during the mass killing of the Flood; and that some descendants of those dinosaurs taken aboard the Ark still roam the earth today.
Because the term only came into use in the 19th century, the Bible obviously does not use the word "dinosaur." However, they are alleged to be mentioned in numerous places throughout the Good Book. For example, the behemoth in Job and the leviathan in Isaiah are sometimes said to be references to dinosaurs.
- Genesis, 1:25
- Genesis 1:29-30
- "Were dinosaurs on Noah’s Ark?", Answers in Genesis
- "Dinosaur bones—just how old are they really?", Creation 21(1):54–55, December 1998
- "Are dinosaurs alive today?", Creation 15(4):12–15, September 1993
- "Could Behemoth have been a dinosaur?", TJ 15(2):42–45, August 2001