In my opinion, Noah's ark was dinosaur.
Ark of Noah is a medium through which data of the gene is transferred.
Genesis 6:19 You are to bring into the ark two of all living creatures, male and female, to keep them alive with you.
Evolution of species doesn't have a linear time till mankind open eyes.
Genesis 9:13 I have set my rainbow in the clouds, and it will be the sign of the covenant between me and the earth.
Where could we find pitch, today?
Genesis 6:14 So make yourself an ark of cypress wood; make rooms in it and coat it with pitch inside and out.
Today's annual rhythms begins "From Genesis 9:13". (This is my assumption.)
Today's light speed begins from Genesis 9:13, too. (I mean, distance.)
http://www.youtube.com/watch?v=Yq98MskQ6rc
So, they have breathed CO2 like trees. - "reason of extinction" - Today's record of CO2 is 0.3%.
"Can you see why some dinosaur need a wing?"
"Can you see the meaning of featherd bird?" - Genesis 8:12
"Can you see why bats live in cave?" - Genesis 8:7
Anyway...
People can make an answer but there is no a reason. (This is your so-called free will.)
God can make a reason but there is no an answer. (This is your so-called destiny & chance.)
Sometimes I say, Newton's apple is more clever than Newton.
Hope it helps.