Fossil Identification
Bryozoa
PHYLUM: -Colonies asymmetrical, Individuals bilateral -Skeleton -Colonial
Porifera
PHYLUM: (Sponges). Porifera because they are porous. Asymmetrical. skeleton= many small spicules solitary and colonial
Cnidaria
PHYLUM: (stinging cells in their tentacles) have a skeleton
Brachiopoda
PHYLUM: Bilateral -shell -solitary?
Arthropoda
PHYLUM: Bilateral. -external skeleton. -solitary.
Echinodermata
PHYLUM: Pentameral -Skeleton -solitary?
Mollusca
PHYLUM: ecologically diverse
blastoidea
CLASS of echinodermata: pentameral skeleton -solitary?
Pelecypoda
CLASS: (clams, oysters, scallops) Bilateral between valves for burrowing forms, asymmetrical for stationary forms, such as oysters -shell -solitary
Anthozoa
CLASS: All corals belong to the class of Cnidaria called anthozoa
gastropoda
CLASS: Body bilateral, shell no symmetry due to coiling. -Shell -Solitary
Cephalopoda
CLASS: Most are bilateral -Shell -Solitary
trilobita
CLASS: bilateral. skeleton. solitary.
Echinoidea
CLASS: can be bilateral or pentamural. -Skeletal plates -solitary
Scleractinian corals
GROUP: -Radial when individual, colonies asymmetrical -Skeleton -colonial and solitary
Rugose corals
GROUP: -Radial when Individual, colonies asymmetrical. -Solitary forms common in paleozoic but some colony forming contributed to reef building. so both -Skeletons
Tabulate corals
GROUP: Radial when individual, colonies asymmetrical. -Skeleton -colonial
Irregular Echinoids
Group: pentameral, superimposed, or bilateral Skeletal plates -solitary