Phylum Brachiopoda Duméril, 1806 - brachiopods
   Subphylum Rhynchonelliformea Williams et al., 1996
     Class †Strophomenata Williams et al, 1996
       Order †Productida Sarycheva & Sokolskaya, 1959
         1 Suborder †Chonetidina Muir-Wood, 1955
         2 Suborder †Productidina Waagen, 1883
         3 Suborder †Strophalosiidina Schuchert, 1913
         4 Suborder †Lyttoniidina Williams et al., 2000