http://www.angelfire.com/mi/dinosaurs/behemoth.html
http://www.missiontoamerica.org/gene...the-bible.html
If you do your research, you will see that the word "dinosaur" was not created until 1841. The King James Version of the Bible was created in 1611. This was 230 years before the word "dinosaur" was created, so you can't expect to find the word "dinosaur" in the Bible.
"Look at the behemoth, which I made along with you and which feeds on grass like an ox. What strength he has in his loins, what power in the muscles of his belly! His tail sways like a cedar; the sinews of his thighs are close-knit. His bones are tubes of bronze, his limbs like rods of iron. He ranks first among the works of God, yet his Maker can approach him with his sword. The hills bring him their produce, and all the wild animals play nearby. Under the lotus plants he lies, hidden among the reeds in the marsh. The lotuses conceal him in their shadow; the poplars of the stream surround him. When the river rages, he is not alarmed; he is secure, though the Jordan should surge against his mouth. Can anyone capture him by the eyes, and trap him or pierce his nose?" -- Job 40:15-24
To me, that definitely sounds like a dinosaur..