Related how?

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
Annelida (Annelid)
Polychaeta (Bristle worms)
Errantia
Phyllodocida
Polynoidae

Chaetacanthus (3916931)

Children (4 direct children, 4 direct and indirect children):