After McKenna & Bell, 1997, with Recent species from Nowak, 1991

Alternative view after Carroll, 1988

<==o Hystricognatha Woods, 1976 [taxonomic history] (piikkisianleukaiset jyrsijät)
   |?- †Tataromys (has been classified as ctenodactylid)
   |?- †Bugtimys zafarullahi Marivaux, Vianey-Liaud, Welcomme & Jaeger, 2002 [is a baluchimyine?]
   |?-o †Gaudeamus Wood, 1968 [Gaudeamuridae Sallam, Seiffert & Simons, 2011]
   |  |-- †G. aegyptius Wood, 1968
   |  |-- †G. lavocati [Phiomys lavocati]
   |  |-- †G. aslius Sallam, Seiffert & Simons, 2011
   |  `-- †G. hylaeus Sallam, Seiffert & Simons, 2011
   |?-o †Protophiomys Jaeger et al., 1985 [incl. Waslamys Sallam et al., 2009]
   |  |-- †P. aegyptensis
   |  |-- †P. algeriensis
   |  `-- †P. durattalahensis
   |?-o †Tsaganomyidae Matthew & Granger, 1923 [taxonomic history]
   |  |-- †Tsaganomys altaicus Matthew & Granger, 1923 [taxonomic history]
   |  `--+-- †Coelodontomys asiaticus Wang, 2001 [taxonomic history]
   |     `--o †Cyclomylus Matthew & Granger, 1923 [taxonomic history]
   |        |-- †C. lohensis Matthew & Granger, 1923 [taxonomic history]
   |        `--+-- †C. intermedius Wang, 2001 [taxonomic history]
   |           `-- †C. biforatus Wang, 2001
   `--o Hystricognathi Tullberg, 1899 [taxonomic history]
      |?- †Luribayomys Hoffstetter & Lavocat, 1976; U.Olig. SA.
      |-- Hystricidae Fischer de Waldheim, 1817 [taxonomic history] (Old World Porcupines; piikkisiat)
      `--+-- Erethizontidae Bonaparte, 1845 [taxonomic history] (New World Porcupines; puupiikkisiat)
         `--+--o †Diamantomyidae Schaub, 1958
            |  |-- †Metaphiomys schaubi Osborn, 1908; U.Eoc.-L.Olig. NEAf., U.Eoc.-?L.Olig. SWAs. [Metaphiomyinae Lavocat, 1973]
            |  `--o †Diamantomyinae Schaub, 1958 sensu Lavocat, 1973
            |     |-- †Diamantomys luederitzi Stromer, 1922; L.-M.Mioc. Af.
            |     `-- †Pomonomys Stromer, 1922; L.Mioc. Af.
            `--+--o †Myophiomyidae Lavocat, 1973
               |  |-- †Phiocricetomys A.E. Wood, 1968; L.Olig. Af. [Phiocricetomyinae Lavocat, 1973]
               |  `--o †Myophiomyinae Lavocat, 1973
               |     |-- †Phiomyoides Stromer, in Kaiser, 1926; L.Mioc. EAf.
               |     |-- †Elmerimys woodi Lavocat, 1973; L.-M.Mioc. EAf.
               |     `-- †Myophiomys arambourgi Lavocat, 1973; L.Mioc. EAf.
               `--+--o †Phiomyidae A.E. Wood, 1955
                  |  |--o †Phiomys Osborn, 1908; U.Eoc.-L.Olig., L.Mioc., Af., U.Eoc.-?L.Olig., M.Mioc. As., Olig. SEu.
                  |  |  |-- †P. andrewsi
                  |  |  `-- †P. paraphiomyoides
                  |  `-- †Andrewsimys parvus  Lavocat, 1973; L.Mioc. EAf.
                  `--+--o †Kenyamyidae Lavocat, 1973
                     |  |--o †Kenyamys Lavocat, 1973; L.Mioc. EAf.
                     |  |  |?- †K. mariae
                     |  |  `?- †K. williamsi
                     |  `--o †Simonimys Lavocat, 1973; L.Mioc. EAf.
                     |     `?- †S. genovefae
                     `--+--o Thryonomyoidea Pocock, 1922 sensu Huchon & Douzery, 2001
                        |  |--o Petromus A. Smith, 1831 [Petromys Smith, 1834] [Pteromuridae Tullberg, 1899] L.Plioc.-R. SAf.
                        |  |  |-- †P. minor Broom, 1939
                        |  |  |-- †P. antiquus Sénégas, 2004
                        |  |  `-- P. typicus A. Smith, 1831 (kalliorotta)
                        |  `-- Thryonomyidae Pocock, 1922 (ruokorotat) [taxonomic history]
                        `--+-- Bathyergomorphi Thullberg, 1899 sensu McKenna & Bell, 1997 (maamyyrärottamaiset jyrsijät)
                           `-- Caviida Bryant & McKenna, 1995 (marsumaiset jyrsijät) [taxonomic history]

Families after Carroll 1988

<==o Hystricognathi
   |--o †PHIOMORPHA
   |  |-- †Phiomyidae
   |  |-- †Thryonomyidae
   |  |?- †Pteromyidae
   |  |-- †Diamantomyidae
   |  |-- †Kenyamyidae
   |  `-- †Myophiomyidae
   |--o HYSTRICOMORPHA
   |  `-- Hystricidae
   |--o BATHYERGOMORPHA
   |  |-- †Tsaganomyidae
   |  `-- Bathyergidae
   `--o CAVIOMORPHA
      |--o ERETHIZONTOIDEA
      |  `-- Erethizontidae
      `--+--o OCTODONTOIDEA
         |  |-- Octodontidae
         |  |--+-- Ctenomyidae
         |  |  `-- Abrocomidae
         |  `--+-- Echimyidae
         |     `-- Capromyidae
         |--o CHINCHILLOIDEA
         |  |-- Chinchillidae
         |  |-- Dasyproctidae
         |  |?- Agoutidae
         |  `-- Dinomyidae
         `--o CAVIOIDEA
            |--+-- Heptaxodontidae
            |  `-- Myocastoridae
            `--+-- †Eocardiidae
               `--+-- Caviidae
                  `-- Hydrochaeridae

Reference(s):