After Carroll, 1988, Williams, G.S., 1999-2000, and Williams, M.E., 1998

<==o †Cladoselachiformes Dean, 1909c
   `--o †Cladoselachidae Dean, 1894
      |?- †Cladolepis gunnelli Wells, 1944
      |?- †Deirolepis carinatus (Wells, 1944)
      |?- †Ohiolepis newberryi (Wells, 1944)
      |?- †Pristicladodus dentatus M'Coy, 1855
      |?-o †Cladodus Agassiz [jr. synon of Cladoselache? (Williams, 1999-2000)] [often treated as a wastebasket taxon]
      |  |-- †C. bassiacus (Gross, 1937)
      |  |-- †C. bellifer (St. John & Worthen, 1875)
      |  |?- †C. hassiacus
      |  `-- †C. wildungensis (Jaekel, 1921) [Cladoselache wildungensis Jaekel, 1921]
      `--o †Cladoselache Dean, 1894 [Cladodus, Monocladodus] U. Dev. NA.
         |-- †C. clarkii [Monocladodus] (Claypole, 1893b)
         |-- †C. elegans
         |-- †C. fyleri Newberry, 1889a
         |-- †C. kepleri Dean, 1909c
         |-- †C. magnificus (Toumey, 1858)- Up.Dev.: ?AL
         |-- †C. mirabilis (Agassiz, 1843)- Low.Carb.: Armagh, Ireland; ?Scotland
         |-- †C. newmani (Toumey, 1851)- Mississippian: AL
         |-- †C. pattersoni (Newberry, 1889)- Up.Dev.: Cleveland, OH
         `-- †C. sp. 

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