In 2020, based on morphological and molecular data, the strongly
paedomorphic Pseudovermidae was recovered as a sister to
Cumanotidae, with the group comprising these sister families placed as sister to superfamilies
Aeolidioidea and
Flabellinoidea within Aeolidacea. A 2025 study recovered this same relationship between the two families and established the superfamily Cumanotoidea to include them, with Cumanotoidea placed as sister to the superfamilies Aeolidioidea,
Chudoidea, Flabellinoidea, and Flabellinopsoidea. Cumanotoidea is distinguishable from a majority of Flabellinoidea by the absence of a distinct
notal edge, few regular
ceratal rows not significantly branched, and special clasping organs in the female component of the
reproductive system. As such, the following families are recognised in the superfamily Cumanotoidea: • Family
Cumanotidae Odhner, 1907 • Family
Pseudovermidae Thiele, 1931 ==References==