Actually, core samples from the arctic sea bed contain fossils from many tropical life forms....meaning the arctic not only has been completely ice free, but very warm for long periods of time in the past.
BTW....I also believe in abiotic oil.
BTW....I also believe in abiotic oil.”
++++++++++++++++
I believe that most of it is from an Earth's worth of decaying plant material after the flood.
I think it's doubtful that much of it is from dinosaurs
Before the flood the earth was one big greenhouse. So that would make sense.