Orders
Billingsellida
An order that contains the suborder Clitambonitidina (and others?) .Orthotetida
An order or superfamily that includes the Chilidiopsoidea.LE Holmer, Z Zhang, TP Topper, and L Popov 2017. The attachment strategies of Cambrian kutorginate brachiopods: the curious case of two pedicle openings and their phylogenetic significance. Journal of Paleontology, 2017. Ontogeny given by Bassett and Popov (2017), resembling that of Kutorginides. Believed to be sister to Strophomenides, = Strophomenida + Billinsellida + Productida.Bassett, M.G., and Popov, L.E. (2017). Earliest ontogeny of the Silurian orthotetide brachiopod ~Coolinia~ and its significance for interpreting strophomenate phylogeny. Lethaia 50, 504–510. Includes the Chileids (e.g. ''Coolinia'').References
External links
* * * Prehistoric protostome classes {{paleo-protostome-stub