Class [Cephalopoda] Cuvier, 1795 - cephalopods
   Subclass †Ammonoidea Zittel, 1884
     Order †Anarcestida Miller & Furnish, 1954
       1 Suborder †Agoniatitina Ruzhencev, 1957
       2 Suborder †Auguritina Bogoslovsky, 1961
       3 Suborder †Anarcestina Miller & Furnish, 1954
       4 Suborder †Gephurocerina Ruzhencev, 1957
       5 Suborder †Timanocerina
       6 Suborder †Prolecanitina Miller & Furnish, 1954