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)
Ecdysozoa (Ecdysozoan)
Panarthropoda
Tactopoda
Arthropoda (Arthropod)
Chelicerata (Chelicerates)

Pycnogonida (19106)

Children (7 direct children, 2009 direct and indirect children):

Pantopoda (tree size 1992)

Endeididae

Palaeopantopoda (tree size 8)

Palaeoisopoda

Nectopantopoda (tree size 2)

Palaeomarachne

Pentapantopus