President Paternoster's latest blog is very helpful. This same question has puzzled me for years. Thankfully we have inspired men leading us in these latter days.
What would we ever do without President Paternoster to make sense out of nonsense? Or is it the reverse? I don't know. But if God can't make any sense through His Holy Prophets, someone has to try.
However,if you are still deeply troubled about Dinosaurs, take a tip from Saints Parker and Stone:
"Turn it off, like a light switch. Just go 'click'. It's a cool little Mormon trick!"