There is a DVD on this, I do not believe this as a christian. One main reason they say this is because they believe dinosaurs went extinct millions of years before people came along, (evolution) but this is easily disprooven because in Job 40:15-24 15 it says-
¶ Behold now behemoth, which I made with thee; he eateth grass as an ox.
16 Lo now, his strength [is] in his loins, and his force [is] in the navel of his belly.
17 He moveth his tail like a cedar: the sinews of his stones are wrapped together.
18 His bones [are as] strong pieces of brass; his bones [are] like bars of iron.
19 He [is] the chief of the ways of God: he that made him can make his
sword to approach [unto him].
20 Surely the mountains bring him forth food, where all the beasts of the field play.
21 He lieth under the shady trees, in the covert of the reed, and fens.
22 The shady trees cover him [with] their shadow; the willows of the brook
compass him about.
23 Behold, he drinketh up a river, [and] hasteth not: he trusteth that he
can draw up Jordan into his mouth.
24 He taketh it with his eyes: [his] nose pierceth through snares.
This is thought to be describing that long necked dinosaur the brontosaurus. It says his tail sways like a ceder, which according to many other verses obviously is depicted as a big tree:
Psalms 92:12 The righteous shall flourish like the palm tree: he shall grow like a cedar in Lebanon (would this verse make much sense if it were referring to a small or medium sized tree?)
Isaiah 2:13 And upon all the cedars of Lebanon, [that are] high and lifted up, and upon all the oaks of Bashan,
Isaiah 37:24 By thy servants hast thou reproached the Lord, and hast said, By the multitude of my chariots am I come up to the height of the mountains, to the sides of Lebanon; and I will cut down the tall cedars…
This tells me that dinosaurs were alive in biblical times not millions of years ago. Also some creation scientists studied the bible and made a graph showing the time line of the age of biblical people aging about 4000 years before Jesus was born (2000 years ago) And they also calculated that if people were alive billions of years ago instead of just 6000 then the earth would have hundreds of people per square inch! Carbon dating is also inaccurate because of weathering etc. so I do believe it is around 6k years old.