In 2004 Jun Yuan Chen and David Bottjer found a fossil

Last updated: 2/17/2023

In 2004 Jun Yuan Chen and David Bottjer found a fossil approximately 580 600 million years old Why was this particular fossil significant O 1 It provided evidence that the earliest life forms were autotrophic 2 It helped provide a date for the emergence of vertebrates 3 It was one of the earliest fossils of a single celled organism 4 It provided evidence that the earliest life forms were heterotrophic 5 It helped provide a date for the emergence of bilateral symmetry in animal