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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
Echinacea (Echinacea (animal))
Phymosomatoida
Polydiaematidae

Polydiadema (23008413)

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

Polydiadema ambiguum

Polydiadema bosei

Polydiadema joaquinensis

Polydiadema karakachi

Polydiadema korotkovi

Polydiadema mamillanum

Polydiadema travisensis