†Fragilia Deshayes 1848 (tellin clam)
Bivalvia - Cardiida - Tellinidae
Parent taxon: Tellinidae according to G.P. Deshayes 1857
Sister taxa: Acorylus, Arcopagia, Barytellina, Cymatoica, Elliptotellina, Eurytellina, Florimetis, Gastrana, Macoma, Macominae, Maera, Merisca, Metis, Nelltia, Peiricola, Psammacoma, Serratina, Sourimis, Strigillinae, Tellina, Tellininae
Subtaxa: Fragilia laudunensis
Ecology: facultatively mobile infaunal deposit feeder