Metazoa/Kingdom Animalia
Parazoa
Phylum Porifera
Demosponges
Eumetazoa
Radiata
Bilateria
Phylum Cnidaria
Hydrozoans ~ Hydra, Obelia, Portuguese Man-O-War (Class Hydrozoa)
Glass Sponges
Calcareous Sponges
Box Jellyfish (Class Cubozoa)
Corals and Anemones (Class Anthozoa)
True Jellyfish (Class Scyphozoa)
Protostomia
Deuterostomia
Lophotrochozoa
Ecdysozoa
Phylum Platyhelminthes
Free-living Flatworms (Turbellaria)
Phylum Mollusca
Gastropoda ~ land snail, sea slug
Phylum Echinodermata
Phylum Chordata
Phylum Annelida
Errantia ~ Polychaetes
Phylum Nematoda
Parasites: Plants, Gastrointestinal Roundworms, Filarial Worms ~ heartworms, roundworms in intestine
Phylum Athropoda
Flukes (Trematoda)
Tapeworms (Cestoda)
Sedentaria ~ Oligochaetes and some Polychaetes
Free-living ~ Caenorhabditis elegans
Cephalopoda ~ Squid, octopus, chambered nautilus
Chitons
Bivalvia
Chelicerata
Mandibulata
Arachnids
Sea Spiders
Ticks, scorpions, mites
Horseshoe Crabs
Hexapods ~ insects, springtails
Crustaceans ~ crabs, lobsters, crayfish, shrimp
Myriapods ~ millipeds, centipedes
Chondrichthyes ~ Shark, rays, their relatives
Brittle stars
Sea Cucumbers
Sea Urchins and Sand Dollars
Sea stars
Actinopterygii ~ Ray-finned fishes
Petromyzontida The Agnathans ~ Hagfish, Lamprey
Actinistia: Sarcopterygii ~ Coelacanths, Lungfish
Myxini: The Agnathans ~ Hagfish, Lamprey
Dipnoi: Sarcopterygii ~ Coelacanths, Lungfish
Urochordata: The Protochordates ~ Lancelets, Tunicates
Amphibia ~ Salamanders & Newts,
Frogs & Toads, Caecilians
Cephalochordata: The Protochordates ~ Lancelets, Tunicates
Reptilia ~ Turtles, Lizards & Snakes,
Crocodilians, Birds
Echinodermata
Mammalia ~ Monotremes: Echidnas, Platypuses; Marsupials: Koalas, Kangaroos, Opossums;
Eutherians: thousand + plus species split between four groups and each has several clades