List of bilateral animal orders contains the
Bilateria of the animal subkingdom
Eumetazoa, divided into four superphyla,
Deuterostomia, and the three
Protostome superphyla,
Ecdysozoa, and the two
Spiralia superphyla,
Platyzoa and
Lophotrochozoa.
- Subphylum
Xenoturbelida
- Subphylum
Acoelomorpha
- Class Enteropneusta (
Acorn worms)
- Class
Graptolithina †
- Class
Planctosphaeroidea
No order, one genus, one species Planctosphaera pelagica
- Class
Pterobranchia
No class, 2 orders, called mud dragons, very common in mud or sand
No class, one order Nanaloricida
- Class Priapulimorpha
- Class
Halicryptomorpha
- Class Seticoronaria
- Class
Gordioidea
- Class
Nectonematoida
- Class
Xenusia
No classes, no orders, families Peripatidae and Peripatopsidae
- Class
Eutardigrada
- Class
Heterotardigrada
No classes
Some dispute here with Micrognathozoa as the class and
Limnognathia as the order
Phylum Cycliophora
- Class Eucycliophora
- Class
Bdelloidea
- Class
Monogononta
- Class
Seisonidea
- Class
Archiacanthocephala
- Class
Eoacanthocephala
- Class
Palaeacanthocephala
No classes, no orders, families Conocyemidae, Dicyemidae and Kantharellidae
No classes, no orders, family Salinellidae
No classes, no orders, families Pelmatosphaeridae and Rhopaluridae
Phylum Platyhelminthes
- Class
Rhabditophora
- Subphylum
Neodermata
- Class
Cestoda
- Class
Monogenea
- Class
Trematoda
No classes
- Phylum
Nemertea
-
Lophophorata (unranked)
No classes, no orders, family Phoronidae
No classes, no orders, families Barentsiidae, Loxokalypodidae, Loxosomatidae and Pedicellinidae
References