List of animal classes

The following is a list of the classes in each phylum of the kingdom Animalia.

Additional recommended knowledge What is the Correct Way to Check Repeatability in Balances? Weighing the right way Correct Test Weight Handling Guide: 12 Practical Tips Contents 1 Acanthocephala 2 Annelida 3 Arthropoda 3.1 Chelicerata 3.2 Pycnogonida 3.3 Crustacea 3.4 Hexapoda 3.5 Myriapoda 4 Brachiopoda 5 Bryozoa 6 Chaetognatha 7 Chordata 7.1 Cephalochordata 7.2 Urochordata 7.3 Vertebrata 7.3.1 Agnatha 7.3.2 Gnathostomata 8 Cnidaria 9 Ctenophora 10 Cycliophora 11 Echinodermata 11.1 Crinozoa 11.2 Asterozoa 11.3 Echinozoa 12 Echiura 13 Entoprocta 14 Gastrotricha 15 Gnathostomulida 16 Hemichordata 17 Kinorhyncha 18 Loricifera 19 Micrognathozoa 20 Mollusca 21 Myxozoa 22 Nematoda 23 Nematomorpha 24 Nemertea 25 Onychophora 26 Orthonectida 27 Phoronida 28 Placozoa 29 Platyhelminthes 30 Pogonophora 31 Porifera 32 Priapulida 33 Rhombozoa 34 Rotifera 35 Sipuncula 36 Tardigrada 37 Xenoturbellida

Acanthocephala

• Archiacanthocephala
• Eoacanthocephala
• Palaeacanthocephala

Annelida

• Branchiobdellae
• Hirudinea
• Oligochaeta
• Polychaeta

Arthropoda

Chelicerata

• Arachnida
• Merostomata

Pycnogonida

Crustacea

• Branchiopoda
• Cephalocarida
• Malacostraca
• Maxillopoda
• Ostracoda
• Remipedia

Hexapoda

• Entognatha
• Insecta

Myriapoda

• Chilopoda
• Diplopoda
• Pauropoda
• Symphyla

Brachiopoda

• Craniforma
• Lingulata
• Rhynchonellata

Bryozoa

• Gymnolaemata
• Phylactolaemata
• Stenolaemata

Chaetognatha

• Archisagittoidea
• Sagittoidea

Chordata

Cephalochordata

• Cephalochordata

Urochordata

• Appendicularia
• Ascidiacea
• Thaliacea

Vertebrata

Agnatha

• Cephalaspidomorphi
• Myxini

Gnathostomata

• Amphibia
• Aves
• Chondrichthyes
• Mammalia
• Osteichthyes
• Reptilia

Cnidaria

• Anthozoa
• Cubozoa
• Hydrozoa
• Scyphozoa
• Polypodiozoa

Ctenophora

• Tentaculata
• Nuda

Cycliophora

• Eucycliophora

Echinodermata

Crinozoa

• Crinoidea

Asterozoa

• Asteroidea
• Ophiuroidea
• Concentricycloidea

Echinozoa

• Echinoidea
• Holothuroidea

Echiura

• Echiuroidea
• Heteromyota
• Xenopneusta

Entoprocta

• Loxosomatida
• Pedicellinida
• Urnatellida

Gastrotricha

• Macrodasyda
• Chaetonotida

Gnathostomulida

• Filospermoidea
• Bursovaginoidea

Hemichordata

• Enteropneusta
• Pterobranchia

Kinorhyncha

• Cyclorhagida
• Homalorhagida

Loricifera

• Loricifera

Micrognathozoa

• Micrognathozoa

Mollusca

• Aplacophora
• Bivalvia
• Cephalopoda
• Gastropoda
• Monoplacophora
• Polyplacophora
• Scaphopoda

Myxozoa

• Malacosporea
• Myxosporea

Nematoda

• Adenophorea
• Secernentea

Nematomorpha

• Gordioidea
• Nectonematoida

Nemertea

• Anopla
• Enopla

Onychophora

• Onychophora

Orthonectida

• Orthonectida

Phoronida

• Phoronida

Placozoa

• Trichoplacoidea

Platyhelminthes

• Cestoda
• Monogenea
• Trematoda
• Turbellaria

Pogonophora

• Perviata
• Vestimentifera

Porifera

• Calcarea
• Demospongiae
• Hexactinellida

Priapulida

• Halicryptomorpha
• Priapulimorpha
• Seticoronaria

Rhombozoa

• Dicyemida
• Heterocyemida

Rotifera

• Bdelloidea
• Monogononta
• Seisonidea

Sipuncula

• Phascolosomatidea
• Sipunculidea

Tardigrada

• Eutardigrada
• Heterotardigrada

Xenoturbellida

• Xenoturbellida