†subfamily Leptellinae Williams 1965 (lamp shell)
Strophomenata - Strophomenida - Taffiidae
Parent taxon: Taffiidae according to J. Hansen and L. E. Holmer 2011
See also Williams et al. 2000
Sister taxa: Ahtiellinae, Bockelia, Halirhachis, Pelonomiinae, Taffiinae, Tinopena, Ukoainae
Subtaxa: Huacoella Leptella Niquivilia
Ecology: stationary epifaunal suspension feeder
Distribution:
• Whiterockian of United States (3: Nevada collections)
• Arenig of Argentina (6), China (16)
• Dawan of China (1)
• Ordovician of Argentina (3), Australia (1), Canada (2: British Columbia, Quebec), China (15), Ireland (1), Kazakhstan (2), Norway (1), United States (9: Montana, Nevada, Tennessee)
Total: 60 collections including 73 occurrences