PREHISTORIC LIFE HOME PREHISTORIC LIFE TABLE OF CONTENTS
OBL HOME
 OBL REFERENCES
INVERTEBRATES
HEMICHORDATE
THE FIRST ANIMALS
FOSSIL ARTHROPOD
DEUTEROSTOMES
BRACHIOPOD FOSSIL
FOSSIL WORMS LANCELET

MOLLUSKS AND BRACHIOPODS
MARINE ARTHROPODS
CHORDATES
FOSSILS OF THE BURGESS SHALE

CNIDARIANS AND WORMS
SPONGES