[dirtboy]

This should rule out that any dead dinosaurs or decaying ancient forests formed the oil found off Brazil's shore. Dinosaurs supposed died out in the Crataceous Period at the end of the Mesozoic Era, just before the Cenozoic Era began.

This kind of simplistic, almost deliberately ignorant treatment of the theory of fossil origins of petroleum don't do anything to sway me to the author's point of view. There are plenty of fossil organic sources, many of which are plantktonic.

[saganite]

It's an ongoing debate and the tide is turning in favor of the abiotic origin of oil. His statement is over the top though. It's not been decided by a long shot.