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Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Mollusca (Molluscs)
Gastropoda (Gastropod)
Heterobranchia

Mathildoidea (6787272)

Children (7 direct children, 142 direct and indirect children):

Mathildidae (tree size 124)

Ampezzanildidae

Anoptychiidae

Gordenellidae (tree size 3)

Tofanellidae (tree size 6)

Trachoecidae (tree size 2)

Schartiidae