Question

Why was the Cambrian era most unique among the fossil record of animal evolution? How did all those different animal body plans arise so quickly?

Answer 1

Cambrian era is also called Cambrian explosion. Cambrian era most unique among the fossil record of animal evolution because, in the Cambrian era most of the animal fossils were appeared. This era is considered unique because, it is unique in the sense that incredible diversity of life emerges, including the chordates and deposition of very high proportion of largest sediments. Hence, it is a sedimentary deposit where not only the hard body preserved but also soft parts of organisms are preserved. These are the various reasons why was the Cambrian era is most unique among fossil record of animal evolution.