Class Rhynchonellata Williams et al. 1996 (lamp shell)
Parent taxon: Rhynchonelliformea according to M. Liljeroth et al. 2017
See also Benedetto 2003, Carlson 2001, Chen and Shi 1999, Feldman 2002, Hansen and Holmer 2011, Jakobsen et al. 2014, Kaim et al. 2010, Williams et al. 2000, Zuykov and Harper 2007 and Zuykov et al. 2008
Sister taxa: Arzonella, Chileata, Kutorginata, Obolellata, Salanygolinidae, Strophomenata
Subtaxa: Athyridida Atrypida Cadomelloidea Cardiarinidae Dentatrypa Mongolellidae Orthida Pentamerida Protorthida Rhynchonellida Spiriferida Spiriferinida Terebratulida Thecideida Tropidoleptidae
Ecology: stationary low-level epifaunal suspension feeder