†subfamily Cyrtiopsinae Ivanova 1972 (lamp shell)
Rhynchonellata - Spiriferida - Cyrtospiriferidae
Parent taxon: Cyrtospiriferidae according to A. Williams et al. 2006
Sister taxa: Cyrtospiriferinae, Pripyatispirifer, Pyramidaspirifer, Sphaenospira
Subtaxa: Acutella Cyrtiopsis Dichospirifer Dmitria Eodmitria Mennespirifer Platyspirifer Uchtospirifer
Type: Cyrtiopsis
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Afghanistan (13 collections), Canada (6: Alberta, British Columbia), China (7), France (3), Germany (1), Iran (14), Poland (6), the Russian Federation (1), United States (9: Colorado, Montana), Vietnam (1)
Total: 61 collections including 83 occurrences