How is a dinosaur fossil formed?

Answer 1

by needing extra things or less thing in certain places

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by two noobish pee pole

Answer 2

Trilobite fossils are most probably the exoskeleton of an animal. Abandoned when the animal shed its shell to grow a new one as part of the growth process. A collection of abandoned shells could then be winnowed by ocean currents and piled up as a large group in an eddy. Such winnowing of shells is a common marine process.

Answer 3

first a trilobite died.next

Answer 4

by deposition