Nonacteoninidae

Bandel, K. (1994). Triassic Euthyneura (Gastropoda) from St. Cassian Formation (Italian Alps) with a discussion on the evolution of the Heterostropha. <em>Freiberger Forschungshefte, ser. C.</em> 452: 79−100, pls. 1−4.

Bouchet P., Rocroi J.P., Hausdorf B., Kaim A., Kano Y., Nützel A., Parkhaev P., Schrödl M. & Strong E.E. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. <em>Malacologia.</em> 61(1-2): 1-526.