Strophomenata
Strophomenata is an extinct class of brachiopods in the subphylum Rhynchonelliformea.Orders
Billingsellida
An order that contains the suborder Clitambonitidina .Orthotetida
An order or superfamily that includes the Chilidiopsoidea. Ontogeny given by Bassett and Popov, resembling that of Kutorginides.
Believed to be sister to Strophomenides, = Strophomenida + Billinsellida + Productida.
Includes the Chileids.
