Pseudothecosomata

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropodae
Subclassis: Orthogastropoda
Superordo: Heterobranchia
Informal Group: Opisthobranchia
Subordo: Thecosomata
Infraordo: Pseudothecosomata
Superfamilia: Peraclidoidea

Name

Pseudothecosomata Meisenheimer, 1905