Invalid subtaxa: Altaethyrella [nomen dubium], Areella Erlang 1992 [nomen dubium], Asiarhynchia Su 1980 [nomen dubium], Atlanticocoelia Koch 1996 [nomen dubium], Beichuanrhynchus [nomen dubium], Borealirhynchia Su 1976 [nomen dubium], Camarotoechioides [nomen dubium], Chivatschella Zavodowsky 1968 [nomen dubium], Corrugatimediorostrum [nomen dubium], Donella [nomen dubium], Hypoleiorhynchus [nomen dubium], Langkawia [nomen dubium], Leiorhynchoides [nomen dubium], Linxiangxiella [nomen dubium], Miaohuangrhynchus [nomen dubium], Mongolirhynchia [nomen dubium], Neimongolella [nomen dubium], Paratetratomia [nomen dubium], Paryphorhynchopora [nomen dubium], Payuella [nomen dubium], Perakia [nomen dubium], Platyglossariorhynchus [nomen dubium], Plekonina Waterhouse 1986 [nomen dubium], Protorhyncha [nomen dubium], Pseudopugnax Licharew 1956 [nomen dubium], Rhynchonella guadalupae Shumard 1858 [nomen vanum], Rhynchotretaoides [nomen dubium], Rhynchotretina [nomen dubium], Salairotoechia [nomen dubium], Sichuanrhynchus [nomen dubium], Straelenia [nomen dubium], Tanerhynchia [nomen dubium], Togaella [nomen dubium], Uncinuloides guadalupensis Shumard 1858 [nomen vanum], Uralotoechia [nomen dubium], Wulungguia [nomen dubium], Yanbianella [nomen dubium], Yarirhynchia [nomen dubium]
Parent taxon: Rhynchonellata according to A. Williams et al. 2000
Sister taxa: Athyridida, Atrypida, Cadomelloidea, Cardiarinidae, Dentatrypa, Mongolellidae, Orthida, Pentamerida, Protorthida, Spiriferida, Spiriferinida, Terebratulida, Thecideida, Tropidoleptidae
Subtaxa: Altaethyrella zhejiangensis, Ancistrorhynchoidea, Antistrixia, Apodosia, Barzellinia, Camarotoechioidea, Chapursania, Chivatschella orotschensis, Dimerelloidea, Disphenia, Dorsisinus, Hemithiridoidea, Isjuminelina, Lambdarinoidea, Laosia, Latirhynchia, Norelloidea, Omolonorhynchia, Payuella obscura, Plekonina spissatella, Pompoecilorhynchus, Praecyclothyrididae, Pseudonudirostra, Pseudopugnax planissima, Pugnacoidea, Rhynchonelloidea, Rhynchoporoidea, Rhynchotetradoidea, Rhynchotrematoidea, Sacothyropsis, Seminula, Stenoscismatoidea, Tatjamoa, Uncinuloidea, Uncinuloides, Wellerelloidea, Yunshanella
Ecology: stationary epifaunal suspension feeder