After McKenna & Bell, 1997

    Theridomyidae Alston, 1876
        Theridomyoidae Lavocat, 1951
        Theridomyidae Alston; McKenna & Bell, 1997
    including:
        Archaeomyidae Schlosser, 1884
        Nesokerodontidae Schlosser, 1884
        Trechomyini Winge, 1887
        Pseudosciurini Winge, 1887
        Pseudosciuridae Zittel, 1893

    †Pseudosciurinae Winge, 1887
        Pseudosciurini Winge, 1887
        Pseudosciuridae Zittel, 1893
        Pseudosciurinae Lavocat, 1951
        Pseudosciurinae Winge; McKenna & Bell, 1997

    †Oltinomyinae Hartenberger, 1971
        Oltinomyinae Bosma & Schmidt-Kittler, 1972
        Oltinomyinae Hartenberger; McKenna & Bell, 1997
    including:
        Remyinae Hartenberger, 1973

    †Sciuroidinae Hartenberger, 1971

    †Adelomyinae Lavocat, 1951
        Adelomyinea Lavocat, 1951

    †Issiodoromyinae Tullberg, 1899
        Issidioromyidae Tullberg, 1899
        Issidoromyidae Schlosser, 1902
        Issiodoromyinae Lavocat, 1951
    including:
        Nesokerodontidae Schlosser, 1884
        Pseudoltinomyini Mödden, 1994

    †Theridomyinae Alston, 1876
        Theridomyidae Alston, 1876
        Theridomyinae Miller & Gidley, 1918
        Theridomyinae Lavocat, 1951
    including:
        Archaeomyinae Schlosser, 1884
        Archaeomyidae Schlosser, 1884
        Archaeomyinae Lavocat, 1951
        Archaeomyini Mödden, 1993

    †Columbomyinae Thaler, 1966

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