Watch our animation to find out how fossils form and why dinosaur fossils are rare compared to those of marine animals. Explore fossilisation in more detail: https://www.nhm.ac.uk/discover/how-ar...

00:00 The process of fossilisation
01:07 How dinosaur bones are discovered
01:43 Why marine fossils are the most common type of fossil
02:06 How dinosaurs died and became fossilised
03:04 Other types of dinosaur fossils

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