After McKenna & Bell, 1997

    Sciuridae Fischer de Waldheim, 1817
        Sciurii Fischer de Waldheim, 1817
        Sciuriorum Fischer de Waldheim, 1817
        Sciuridae Gray, 1821
        Sciurina Haeckel, 1866
        Sciuroidea Gill, 1872
        Sciuroidea Miller & Gidley, 1918, in partim
      including:
        Arctomydae J.E. Gray, 1821
        Arctomysideae Lesson, 1841
        Arctomyida Haeckel, 1866
        Marmotinae Pocock, 1923
        Marmotidae Weber, 1928

        †Cedromurinae Korth & Emry, 1991

        Pteromyinae Brandt, 1855
            Pteromyini Brandt, 1855
            Pteromidae Anderson, 1879
            Petauristidae Miller, 1912
            Pteromyinae G.S. Miller & Gidley, 1918
            Petauristinae Simpson, 1945
            Petauristini de Bruijn, van der Maulen & Katsikatsos, 1980
            Pteromyinae McKenna & Bell, 1997
          including:
            Eupetauridae Schaub, 1953
            Blackiini de Bruijn, van der Maulen & Katsikatsos, 1980

        Sciurinae Fischer de Waldheim, 1817
            Sciurii Fischer de Waldheim, 1817
            Sciuriorum Fischer de Waldheim, 1817
            Sciuridae Gray, 1821
            Sciurinae Baird, 1857
          including:
            Xeri Murray, 1866
            Xerinae Osborn, 1910
            Marmotinae Pocock, 1923
            Spermophilopsinae Ognev, 1940

            Sciurini Fischer de Waldheim, 1817
                Sciurii Fischer de Waldheim, 1817
                Sciuriorum Fischer de Waldheim, 1817
                Sciurina Hemprich, 1820
                Sciurina Gray, 1825
                Sciurini Burmeister, 1845
                Sciurini McKenna & Bell, 1997

                Sciurillina Moore, 1959

                Sciurina Fischer de Waldheim, 1817
                    Sciurii Fischer de Waldheim, 1817
                    Sciuriorum Fischer de Waldheim, 1817
                    Sciuridae Gray, 1821
                    Sciurina Moore, 1959
                  including:
                    Microsciurina Moore, 1959

            Xerini Murray, 1866
                Xeri Murray, 1866
                Xerinae Osborn, 1910
                Xerini Simpson, 1945
                Xerini McKenna & Bell, 1997
              including:
                Spermophilopsinae Ognev, 1940

            Marmotini Pocock, 1923
                Arctomydae Gray, 1821
                Arctomina Gray, 1825
                Arctomyini Brandt, 1855
                Marmotinae Pocock, 1923
                Marmotidae Weber, 1928
                Marmotini Simpson, 1945
                Marmotini McKenna & Bell, 1997

                Marmotina Pocock, 1923
                    Arctomyini Brandt, 1855
                    Arctomyida Haeckel, 1866
                    Marmotinae Pocock, 1923
                    Marmotina Moore, 1959
                    Marmotina McKenna & Bell, 1997

                Spermophilina Moore, 1959
                    Citellini Gromov, 1965

            Tamiini Weber, 1928
                Tamiidae Weber, 1928
                Tamiina Moore, 1959
                Tamiini Black, 1963
                Tamiini McKenna & Bell, 1997

            Ratufini Moore, 1959
                Ratufinae Corbet & Hill, 1992
                Ratufini McKenna & Bell, 1997

            Nannosciurini Forsyth Major, 1893 nom. transl. McKenna & Bell, 1997 pro Nannosciurinae Forsyth Major, 1893
                Nannosciurinae Forsyth Major, 1893
              including:
                Callosciurinae Pocock, 1923
                Callosciurini Simpson, 1945
                Hyosciurina Moore, 1959

            Protoxerini Moore, 1959

             Funambulini Pocock, 1923
                Funambulinae Pocock, 1923
                Funambulini Simpson, 1945
                Funambulini McKenna & Bell, 1997

                Funisciurina Moore, 1959
                    Funisciurina Moore, 1959
                    Funisciurina McKenna & Bell, 1997

                Funambulina Pocock, 1923
                    Funambulinae Pocock, 1923
                    Funambulina Moore, 1959
                    Funabmulina McKenna & Bell, 1997

                Myosciurina Moore, 1959
                    Myosciurina Moore, 1959
                    Myosciurina McKenna & Bell, 1997

                Tamiasciurini Pocock, 1923
                    Tamiasciurinae Pocock, 1923
                    Tamiasciurini Simpson, 1945
                    Tamiasciurini McKenna & Bell, 1997

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