Horridonia horrida

Horridonia horrida (Productus horridus) , Photo: Michael Lahanas

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: ParaHoxozoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Brachiopoda
Subphylum: Rhynchonelliformea
Class: Strophomenata
Ordo: Productida
Subordo: Productidina
Superfamilia: Productoidea
Genus: Horridonia
Species: Horridonia horrida