Taxonomy - Taxonomy and Evolution Chart 2 Germ Layers No...

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Taxonomy and Evolution Chart 2 Germ Layers , No Coelom, Radial Symmetry , Gastrovascular Cavity Phylum Cnidaria (sea anemones) 3 Germ Layers , No Coelom, Bilateral Symmetry , Gastrovascular Cavity Phylum Platyhelminthes Class Turbellaria ( Dugesia “planarians”) Class Trematoda (flukes) Class Cestoda (tapeworms) 3 Germ Layers, Coelom from Mesoderm (protostome) , Bilateral Symmetry, GI Tract Phylum Mollusca Class Gastropoda (snails, slugs) Class Bivalvia (clams, scallops) Class Cephalopoda (squids, octopi) Class Polyplacophora (chitons) 3 Germ Layers, Coelom from Mesoderm (protostome), Bilateral Symmetry, GI Tract, Segmentation Phylum Annelida Class Oligochaeta (earthworm) Class Polychaeta (featherduster worm) Class Hirudinea (leeches) 3 Germ Layers, Coelom from Mesoderm (protostome), Bilateral Symmetry, GI Tract, Jointed Appendages Phylum Arthropoda Subphylum Trilobita (extinct) Subphylum Chelicerata (possess chelicera ) Class Arachnida (spiders, scorpions) Class Merostomata (horseshoe crabs)
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This note was uploaded on 07/15/2008 for the course BIO 1al taught by Professor Pederson during the Fall '08 term at Berkeley.

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