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 (Sea spiders)
Pantopoda
Ascorhynchoidea
Ammotheidae