Stromatolite

Poster of prehistoric animals of the Cambrian period

Animals and floral life from the Burgess Shale formation of

The predator Opabinia uses its proboscis to eat a trilobite

Trilobites try to hide from predator Opabinia

Artist's concept of Archean stromatolites on the shore of ?

Anomalocaris sneaks up on a Trilobite in Cambrian seas

Stromatolite

Proterozoic ocean floor