Lingulata - Lingulida - Obolidae
Parent taxon: Obolidae according to J. Hansen and L. E. Holmer 2011
See also Williams et al. 2000
Sister taxa: Atansoria, Eodicellomus, Fordinia, Foveola, Glossellinae, Lingulella, Lingulellinae, Luthieria, Obolinae, Prastavia, Xianshanella
Subtaxa: Elliptoglossa Lingulops
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Chazyan of United States (1: Alabama collection)
• Arenig of Czechia (1), Spain (1)
• Arenigian of Czechia (1)
• Ordovician of Argentina (2), Australia (10), China (1), Iran (1), Ireland (1), Kazakhstan (1), Norway (7), Poland (1), Portugal (1), the United Kingdom (1), United States (11: Illinois, Iowa, Indiana, Minnesota, Ohio, Tennessee, Virginia)
Total: 41 collections including 42 occurrences