The Burgess Shale preserves a remarkable fossil record of:

A. delicate flowers and mushrooms from the
early invasion of land plants.
B. marine life during initial diversification of
animals in the Cambrian Period 505 million
years ago.
C. plants, insects, and mammals around 50
million years ago, as the age of mammals
began.
D. the tracks of dinosaurs walking on land.
E. molecular evidence of bacteria and other
organisms.


B

Biology & Microbiology

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