Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Nemertea (Nemertean)
Enopla
Hoplonemertea
Monostilifera
Eumonostilifera
Quasitetrastemma (18915974)
Children (3 direct children, 3 direct and indirect children):
Quasitetrastemma bicolor
Quasitetrastemma nigrifrons
Quasitetrastemma stimpsoni