Name ____________________________________________ Period ________ date ____________ ANIMAL EVOLUTIONARY MILESTONES PHYLA: Echinodermata Porifera Annelida Mollusca Cnidaria Arthropoda Nematoda Platyhelminthes Chordata Phylum Examples Evolutionary Milestone Sponges Multicellularity Jellyfish, coral Tissues Flatworms Bilateral symmetry Pseudocoelom (An internal body Roundworms cavity of some primitive invertebrates, similar to a coelom but lacking a mesodermal lining.) Clams, squid, snails Coelom (the body cavity in animals, located between the intestinal canal and body wall) Earthworms, leeches Segmentation Insects, spiders, Jointed appendages crustaceans Starfish, sea urchins Deuterostomes (animals in which the first opening in the embryo becomes the anus during embryonic development) Vertebrates Notochord
Name ____________________________________________ Period ________ date ____________ ANIMAL EVOLUTIONARY MILESTONES PHYLA: Echinodermata Mollusca Nematoda Porifera Cnidaria Platyhelminthes Annelida Arthropoda Chordata Phylum Examples Evolutionary Milestone Sponges Multicellularity Jellyfish, coral Tissues Flatworms Bilateral symmetry Roundworms Pseudocoelom (An internal body cavity of some primitive invertebrates, similar to a coelom but lacking a mesodermal lining.) Clams, squid, snails Coelom (the body cavity in animals, located between the intestinal canal and body wall) Earthworms, leeches Segmentation Insects, spiders, crustaceans Jointed appendages Starfish, sea urchins Deuterostomes (animals in which the first opening in the embryo becomes the anus during embryonic development) Vertebrates Notochord