There is no scientific data that indicates fossil fuels come from fossils. Earth uses 34 Billion Barrels per day. Only something as big as a planet could produce that much petroleum, but that's none of my business.
IF POLYMERS ARE MADE FROM PETROLEUM, PETROLEUM IS REFINED FROM CRUDE OIL, AND CRUDE OIL COMES FROM THE LEFTOVER REMAINS OF ANCIENT LIFE FORMS; DOES THAT MEAN PLASTIC DINOSAURS ARE MADE OUT OF REAL DINOSAURS?