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)
Cycloneuralia
Scalidophora
Priapulida (Priapulid worms)
Halicryptomorpha
Halicryptidae
Children (2 direct children, 2 direct and indirect children):
Halicryptus spinulosus
Halicryptus higginsi