- Lindquist, 2018
Eupalopsellidae Willmann, 1952
Homocaligidae Wood, 1970
Mecognathidae Gerson & Walter, 1998
Raphignathidae Kramer, 1877
Stigmaeidae Oudemans...
- Cryptognathidae, Dasythyreidae, Dytiscacaridae, Eupalopsellidae, Homocaligidae,
Mecognathidae, Raphignathidae, Stigmaeidae, Xenocaligonellididae)".
Advanced Books...
- Cryptognathidae, Dasythyreidae, Dytiscacaridae, Eupalopsellidae, Homocaligidae,
Mecognathidae, Raphignathidae, Stigmaeidae, Xenocaligonellididae)".
Advanced Books...