Invertebrate Taxonomy

Flashcards covering key terms and concepts from the Invertebrate Taxonomy lecture notes.

Clade Parazoa

A clade that includes organisms that lack true tissues, such as sponges.

Phylum Porifera

The phylum that includes sponges, which are classified under Clade Parazoa.

Clade Eumetazoa

A clade of animals with true tissues, excluding sponges.

Phylum Cnidaria

The phylum that includes cnidarians such as hydrozoans, jellies, and corals.

Clade Bilateria

A clade that includes organisms with bilateral symmetry.

Clade Protostomia

A clade that refers to protostomes, organisms whose embryos develop the mouth first.

Phylum Platyhelminthes

The phylum that includes flatworms, which are classified under Clade Protostomia.

Clade Spiralia

A subgroup of Protostomia that includes all non-ecdysozoans.

Phylum Mollusca

The phylum that includes mollusks such as snails, clams, and squids.

Clade Ecdysozoa

A clade of animals characterized by having an exoskeleton that is shed.

Phylum Arthropoda

The phylum that encompasses insects, arachnids, and crustaceans, classified under Ecdysozoa.

Subphylum Cheliceriformes

A subphylum of arthropods that includes horseshoe crabs, spiders, and scorpions.

Phylum Echinodermata

The phylum that includes echinoderms like sea stars and sea cucumbers.

Clade Deuterostomia

A clade that includes deuterostomes, organisms whose embryos develop the anus first.

Phylum Chordata

The phylum that includes organisms with a notochord, classified under Deuterostomia.