The famous Cambrian-era fossil deposit known as the Burgess Shale is now estimated to contain fossils of how many animal phyla?
A) None―animals had not appeared at the time.
B) just two or three anatomically simple animal phyla
C) about the same number as those alive today
D) two or three times as many as alive today
E) about half as many as are alive today

Question

Quizplus · Accepted Answer

The Burgess Shale is renowned for its exceptional preservation of mid-Cambrian organisms, showcasing a diversity of animal phyla nearly equivalent to the number known today, including many bizarre and unique forms that provide insight into early animal evolution.

The Famous Cambrian-Era Fossil Deposit Known as the Burgess Shale