Family Semelidae Stoliczka 1870 (clam)
PaleoDB taxon number: 62214
Synonyms: Amphidesmatidae Latreille 1825 (no. 382022), Lavignonidae Récluz 1869 (no. 382356)
Parent taxon: Tellinoidea according to J. G. Carter et al. 2011
Sister taxa: Donacidae, Icanotiidae, Psammobiidae, Quenstedtiidae, Solecurtidae, Sowerbyidae, Tancrediidae, Tellinidae, Unicardiopsidae
Subtaxa: Abra, Amphidesma, Cumingia, Ervilia, Erviliinae, Lavignonus, Leptomya, Ligula, Scrobiculariinae, Semele, Semelinae, Theora
Ecology: facultatively mobile infaunal deposit feeder