Carboniferous

Sea Urchins, Sea Liliys and other Echinodermata

Brachiopods

Old Ammonites, Goniatites, Clymenias et al.

Sharks and Fish

Shark, any of numerous species of cartilaginous fishes of predatory habit that constitute the order Selachii (class Chondrichthyes).

Plant Fossils and Stromatolithes

Snails and Clams

Trilobites

Trilobite, any member of a group of extinct fossil arthropods easily recognized by their distinctive three-lobed, three-segmented form.