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Majors animal: Animal phyla, subphyla, classes, superclasses (invertebrates)

Scientific nameCommon name
Class Monoplacophora Monoplacophorans
Class Polyplacophora Chitons
Class Aplacophora Solenogasters
Class Scaphopoda Tooth/tusk shells
Class Gastropoda Snails, slugs, whelks, nudibranch, limpets
Class Bivalvia (Pelecypoda) Clams, mussels, oyster, scallops
Class Cephalopoda Squid, octopi, nautili, cuttlefish
Class Polychaeta (Polychaete Worms) Clamworm, lug worm, feather-duster/fan worm, plume worm, arachiannelid
Class Oligochaeta (Bristleworms) Earthworms, dung worm, sewage worm
Class Hirudinea Leeches
Class Merostomata Water scorpion, horseshoe crab
Class Pycnogonida Sea spider
Class Arachnida Spider, tick, scorpion
Class Branchiopoda Water flea, fairy shrimp, brine shrimp, claim shrimp, tadpole shrimp, etc.
Class Maxillopoda Ostracoda, Copepoda, Branchiura fish louse, Cirripedia barnacles
Class Malacostraca Isopoda sow bugs and pill bugs, Amphipoda beach fleas and skeleton shrimp, Euphausiacea krill, Decapoda crayfish, lobsters, crabs, fiddler crabs, decorator crabs, etc.
Class Diplopoda Millipedes
Class Chilopoda Centipedes
Class Pauropoda Pauropods
Class Symphyla Garden centipede
Class Entognatha Spring tails, snow fleas, japygids
Class Insecta Mayflies, dragonflies, grasshoppers, "true" bugs, mealybugs, beetles, "true" flies, butterflies, moths, bees, wasps, termites, biting lice, etc. (900,000 species)
Class Enteroneusta Entropneusts
Class Pterobranchia Pterobranchs
Phylum Sipuncula Sipunculans
Phylum Echiura Echiurans
Phylum Phoronida Lophophorates (ex: worm-like animals)
Phylum Brachiopoda Lophophorates (ex: bottom-dwelling marine worms)
Phylum Ectoprocta Lophophorates (ex: ectoprocts)
Phylum Pentastomida Pentastomids
Phylum Onychophora Onycophorans
Phylum Tardigrada Tardigrades
Phylum Chaetognatha Arrowworms
Class Echinoidea Sea urchins, sand dollars
Class Holothuroida Sea cucumbers
Class Crinoidea Sea lilies, basket star, feather star
Class Asteroidea Starfish or sea stars
Class Ophiuroidea Brittle stars, Pacific basket star
Created by: scandalouscanine