It’s a commonly spread fiction that oil comes from dinosaurs because when people hear fossils, their brains immediately jump to dinosaurs. However, that’s not the case.
The truth may be less exciting to some, but oil and other fossil fuels are not actually formed from the remains of dinosaurs. The oil we’re drilling and pumping to the surface as fuel is formed from diatoms, small organisms such as algae and bacteria that lived long before dinosaurs even existed. Source
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