Mathildoidea

Mathildoidea is a superfamily of sea snails, marine gastropod mollusks in the informal group Lower Heterobranchia.

Families
Families within the superfamily Mathildoidea include:
 * Family Mathildidae
 * † Family Ampezzanildidae
 * † Family Anoptychiidae
 * † Family Gordenellidae
 * Family Tofanellidae
 * † Family Trachoecidae