A Classification of Invertebrate Paleontology

1. Kingdom Protoctista
   1. Phylum Protozoa
      1. Subphylum Sarcomastigophora
         1. Class Sarcodina
            1. Subclass Rhizopoda
               1. Order Foraminifera
                  1. Suborder Allogromiina
                  2. Suborder Textulariina
                  3. Suborder Fusulinina
                  4. Suborder Miliolina
                  5. Suborder Rotaliina
            2. Subclass Actinopoda
               1. Order Radiolaria
2. Kingdom Monera
   1. Division Schizomycophyta (bacteria)
   2. Division Cyanophyta (cyanobacteria)
3. Kingdom Animalia
   1. Phylum Porifera (sponges)
   2. Phylum Coelenterata / Cnidaria
   3. Phylum Bryozoa
   4. Phylum Brachiopoda
   5. Phylum Mollusca
      1. Class Bivalvia
      2. Class Gastropoda
      3. Class Cephalopoda
         1. Subclass Nautiloidea
         2. Subclass Ammonoidea
            1. Goniatitic
            2. Ceratitic
            3. Ammonitic
         3. Subclass Coleoidea (squids, etc.)
            1. Order Belemnoidea
   6. Phylum Arthropoda
      1. Class Arachnoidea
      2. Class Trilobita
      3. Class Insecta
   7. Phylum Echinodermata
      1. Subphylum Crinozoa (sessile)
         1. Class Cystoidea
         2. Class Blastoidea
         3. Class Crinoidea
      2. Subphylum Echinozoa (mobile)
         1. Class Asteroidea
         2. Class Echinoidea
   8. Phylum Hemichordata
      1. Class Graptoloidea