World Register of Marine Species (WoRMS)
MolluscaBase eds. (2026). MolluscaBase. Entalimorpha. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=382320 on 2026-08-25
Steiner G. (1992). Phylogeny and classification of Scaphopoda. Journal of Molluscan Studies 58 (4): 385-400.