Phylum Foraminifera d'Orbigny, 1826 see Subphylum Foraminifera d'Orbigny, 1826
Count: [*†*] 5c;1o;6f;15g;18s; †1f;6g;7s
   Class Miliolata Saidova, 1981 - porcelaneous foraminifers
  Count: [*†*] 1o;6f;15g;18s; †1f;6g;7s
     Subclass Miliamminana Mikhalevich, 1980
    Count: [*†*] 1o;6f;15g;18s; †1f;6g;7s
       Order Schlumbergerinida Mikhalevich, 1980
      Count: [*†*] 6f;15g;18s; †1f;6g;7s [17 Nov 2015]
         Family Sigmoilopsidae Vella, 1957
        Count: [*†*] 3g;6s; †2g;2s [17 Nov 2015]
           Subfamily Sigmoilopsinae Vella, 1957
          Count: [*†*] 1g;4s; †1g;1s [17 Nov 2015]
             Genus †Silicosigmoilina Cushman & Church, 1929
            Count: [†*] †1s
               †Silicosigmoilina californicaᵀ Cushman & Church, 1929
              Count: -