Trypanaxidae is an extinct family of fossil sea snails, marine gastropod molluscs in the superfamily Campaniloidea.
According to the taxonomy of the Gastropoda by Bouchet & Rocroi (2005), the family Trypanaxidae has no subfamilies.
Genera Genera within the family Trypanaxidae include: † Trypanaxis Cossmann, 1889 - the type genus † Alocaxis Cossmann, 1889Alocaxis. The Paleobiology Database, accessed 16 May 2010.
References
The Paleobiology Database: Trypanaxidae