Phylum Arthropoda Rubund Creative Commons Attribution ShareAlike.

Phylum Onychophora "Onychophora" by Bruno C. Vellutini via Flickr, Creative Commons Attribution ShareAlike.

Taxonomy:

Phylum Arthropoda

Chelicerata (Add)

Class Arachnids, Arachnida

Ord. Amblypygi

Euamblypygi (Add)
Paleoamblypygi (Add)

Ord. Spiders, Araneae

Mesothelae
Opisthothelae (Add)

Ord. Opiliones

Cyphophthalmi (Add)
Dyspnoi (Add)
Eupnoi (Add)
Laniatores (Add)

Ord. Palpigradi (Add)
Ord. Pseudoscorpion, Pseudoscorpiones

Epiocheirata (Add)
Iocheirata (Add)

Ord. Ricinulei (Add)
Ord. Schizomida (Add)
Ord. Schizomida (Add)
Ord. Scorpion, Scorpiones

Cyclophthalmoidea (Add)
Mesoscorpionina (Add)
Neoscorpionina (Add)

Ord. Solifugae

Fam. Ammotrechidae (Add)
Fam. Ceromidae (Add)
Fam. Daesiidae (Add)
Fam. Eremobatidae (Add)
Fam. Galeodidae (Add)
Fam. Gylippidae (Add)
Fam. Hexisopodidae (Add)
Fam. Karschiidae (Add)
Fam. Melanoblossidae (Add)
Fam. Mummuciidae (Add)
Fam. Rhagodidae (Add)
Fam. Solpugidae (Add)

Ord. Uropygids, Thelyphonida (Add)

Fam. Thelyphonidae (Add)

S.Class Acari

Superord. Acariformes (Add)
Ord. Parasitiformes

Class Merostomata (Add)
Class Pycnogonida (Add)

Crustacea

Class Branchiopoda (Add)
Class Branchiura (Add)
Class Cephalocarida (Add)
Class Cirripedia (Add)
Class Copepoda (Add)
Class Malacostraca

S.Class Eumalacostraca (Add)

Superord. Eucarida (Add)
Superord. Peracarida (Add)
Superord. Syncarida (Add)

S.Class Hoplocarida (Add)

Ord. Aeschronectida (Add)
Ord. Palaeostomatopoda (Add)
Ord. Mantis shrimp, Stomatopoda

S.Class Phyllocarida (Add)

Ord. Archaeostraca (Add)
Ord. Hoplostraca (Add)
Ord. Leptostraca (Add)

Class Mystacocarida (Add)
Class Ostracoda (Add)
Class Remipedia (Add)
Class Tantulocarida (Add)

Tracheata (Add)

Hexapoda (Add)

Class Entognatha

Ord. Springtail, Collembola

Ord. Diplura (Add)
Ord. Protura (Add)

Class Insects, Insecta

S.Class Apterygota (Add)
S.Class Pterygota (Add)

Myriapoda (Add)

Class Chilopoda

Ord. Craterostigmomorpha (Add)
Ord. Geophilomorpha (Add)
Ord. Lithobiomorpha (Add)
Ord. Scolopendromorpha (Add)
Ord. Scutigeromorpha (Add)

Class Diplopoda

Ord. Glomerida (Add)
Ord. Julida (Add)
Ord. Polydesmida (Add)
Ord. Spirostreptida (Add)

Class Pauropoda

Ord. Hexamerocerata (Add)
Ord. Tetramerocerata (Add)

Class Symphyla

Fam. Scolopendrellidae (Add)
Fam. Scutigerellidae (Add)

Trilobita (Add)

Ord. Agnostida (Add)
Ord. Asaphida (Add)
Ord. Corynexoochida (Add)
Ord. Harpetida (Add)
Ord. Lichida (Add)
Ord. Nectaspida (Add)
Ord. Phacopida (Add)
Ord. Proetida (Add)
Ord. Ptychopariida (Add)
Ord. Redlichiida (Add)

Phylum Onychophora

Class Onychophorida (Add)

Ord. Euonychophora (Add)

Fam. Peripatidae (Add)
Fam. Peripatopsidae (Add)
Fam. Incertae Sedis (Euonychophora) (Add)

Ord. Paronychophora (Add)

Fam. Onychodictyidae (Add)

Class Eutardigrada (Add)
Class Heterotardigrada (Add)