animal phyla

Phylum Porifera
Phylum Cnidaria

• Polyp body form

• Medusa body form

Phylum Ctenophora

The ecdysozoans

Phylum Nematoda
Phylum Arthropoda

• Subphylum Chelicerata

• Subphylum Myriapoda

• Subphylum Crustacea

• Subphylum Hexapoda (Class Insecta )

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  The Lophotrochozoans:

Phylum Platyhelminthes

• Class Turbellaria

• Class Cestoda

• Class Trematoda

Phylum Rotifera

Phylum Mollusca

• Class Polyplacophora

• Class Gastropoda

• Class Cephalopoda

• Class Bivalvia

Phylum Annelida

• Class Polychaeta

• Class Hirudinea

• Class Oligochaeta

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  The Deuterostomes:

Phylum Echinodermata

Phylum Chordata

• Subphylum Urochordata (tunicates)

• Subphylum Cephalochordata (lancelets)

• Class Myxini (hagfish)

• Class Petrozontida (lamprey)

• Class Chondrichthyes (sharks & rays)

• Class Ostiechthyes (bony fish)

• Class Amphibia

• Class Reptilia

• Class Aves

• Class Mammalia