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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

Stomechinidae (21221301)

Children (16 direct children, 69 direct and indirect children):

Codechinus (tree size 1)

Echinotiara (tree size 3)

Stomechinus (tree size 20)

Polycyphus (tree size 7)

Baronechinus (tree size 1)

Diplechinus (tree size 1)

Jeannetia (tree size 1)

Magnosia (tree size 10)

Tiarechinopsis (tree size 1)

Psephechinus (tree size 8)

Thierychinus

Glyptechinus

Sporadocyphus

Spaniocyphus

Sporotaxis

Microdiadema