Related how?

Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Echinodermata (Echinoderms)
Sea urchin (Echinoidea)
Euechinoidea
Diadematacea
Diadematoida
Diadematidae

Chaetodiadema (15981952)

Children (6 direct children, 6 direct and indirect children):

Chaetodiadema tuberculatum

Chaetodiadema japonicum

Chaetodiadema pallidum

Chaetodiadema keiense

Chaetodiadema granulatum

Chaetodiadema africanum