RICHARD BIZLEY / SCIENCE PHOTO LIBRARY RICHARD BIZLEY / SCIENCE PHOTO LIBRARY
Cambrian invertebrate. Artwork of a Marrella splendens invertebrate (left) swimming in an ancient sea during the Cambrian Period. This period is known for the Cambrian Explosion (around 500 million years ago), the evolution of an extremely diverse array of invertebrates. Most of these went extinct, but the ones that remained formed the basis of animal life on Earth today. Marrella splendens, an arthropod a few centimetres long, with two long antennae and multiple legs, is one of the commonest fossils found from this period.
Model release not required. Property release not required.