And we're back!!!
Welcome aboard Richo hehe.
Mate, if a professed Christian does not believe that the Bible is the true Word of God, then he's not a Christian.. simple as that. God speaks to us through His Word- which is the scriptures, otherwise known as the Bible. The Bible is the truth because it claims to be the truth. It is referred to as the Word of Truth, and the HOLY scriptures. Something which is holy cannot be false. (scripture is holy not the book itself... it's only paper.) A person cannot be a Christian and not believe in the Bible as the true Word of God.. because that is saying Jesus is not your Lord (sovereign master) and you refuse to believe in His word. I would think every religion would have a medium their God uses to speak to them.
As for dinosaurs, one wouldn't expect a whole page or paragraph to be dedicated to them as they are quite insignificant to salvation and eternal life?

Coz if that's the case, the Bible should have pages dedicated to the pyramids, details on how a brain works, aliens, etc etc. But guess what, there is mention of these huge creatures in the bible.
Job 40:14-16
14 Then I myself will admit to you
that your own right hand can save you.
15 "Look at the behemoth, [a]
which I made along with you
and which feeds on grass like an ox.
16 What strength he has in his loins,
what power in the muscles of his belly!
Also...
Job 41:1
1 "Can you pull in the leviathan [a] with a fishhook
or tie down his tongue with a rope?
Obviously these were huge creatures.