Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Ecdysozoa (Ecdysozoan)
Panarthropoda
Tactopoda
Arthropoda (Arthropod)
Mandibulata
Tracheata
Uniramia
Pancrustacea
Crustacea (Crustaceans)
Maxillopoda (Maxillopod)
Thecostraca
Barnacle (Cirripedia)
Rhizocephala (Rhizocephalan barnacle)
Kentrogonida
Sacculinidae
Children (2 direct children, 2 direct and indirect children):
Ptychascus glaber
Ptychascus barnwelli