what kind of animals are trilobites and cephalopods
Trilobites and cephalopods are examples of these multi-celled animals. During the Devonian Period (380 million years ago) southern Minnesota was once again covered by a sea, leaving fossils of fish and corals scattered throughout the area.ossils are the remains of plants and animals found in rock. A fossil can be many things: a bone from a dinosaur, the tooth of a shark, a sea shell or a footprint.