†family Euchasmidae Starobogatov 1977 (mollusk)
Parent taxon: Rostroconchia according to P. Bouchet et al. 2010
Sister taxa: Anetshelloida, Conocardiida, Ozomiidae, Pseudotechnophoridae, Ribeirioida, Tolmachoviidae, Tuarangiida, Wanwaniidae
Subtaxa: none
Ecology: stationary semi-infaunal suspension feeder
Distribution: there are no occurrences of Euchasmidae in the database