During which geologic epoch did these animals live? 1.

These animal live during Middle Cambrian.
The Cambrian Period is the first geological time period of the Paleozoic Era also known as the “time of ancient life”.
This period lasted approximately 53 million years and marked a dramatic burst of evolutionary changes in life on Earth, known as the "Cambrian Explosion."

The answer is a because - is an direction

Breacking the law and lazy