Rhynchonellata - Terebratulida - Harpotothyrididae
Parent taxon: Loboidothyridoidea according to A. Williams et al. 2006
Sister taxa: Alabushevothyrididae, Boreiothyrididae, Cheirothyropsidae, Cheniothyrididae, Clathrithyrididae, Dictyothyrididae, Dienopidae, Eplenyithyris, Goniothyridinae, Hesperithyrididae, Heterobrochinae, Jaisalmeria, Kendzhilgithyris, Lissajousithyrididae, Loboidothyrididae, Lobothyrididae, Lobothyroides, Magharithyris, Mametothyrididae, Muirwoodellidae, Naradanithyris, Neumayrithyris, Pamirothyris, Peristerothyris, Plectoconchidae, Postepithyrididae, Psebajithyridinae, Rugithyris, Sogxianthyris, Spasskothyrididae, Taurothyris, Tchegemithyrididae, Tegulithyrididae, Triadithyrididae, Trichothyris, Trigonithyrididae, Tshemsarythyris, Viallithyris, Weldonithyris
Subtaxa: Atelithyris Convexothyris Lissothyris Okathyris
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Cretaceous of the Russian Federation (7 collections)
Total: 7 collections including 8 occurrences