After McKenna & Bell, 1997, Daxner-Höck, 2001, and López Antoñanzas & Sen, 2006, with recent species from Nowak, 1991

<==o Sicistinae [taxonomic history] (koivuhiiret)
   |--o †Allosminthus Wang, 1985; L.Olig. As.
   |  |-- †A. ernos Wang, 1985
   |  `-- †A. majusculus Wang, 1985
   `--+-- †“Shamosminthussodovis Daxner-Höck, 2001
      `--+--+--  †“Heterosminthusgansus Zheng, 1982 [Heterosminthus simplicidens Zheng, 1982; Bujoromys olarui Lungu, 1981; Sarmatosminthus gabuniai Lungu, 1981 (in partim)]
         |  `--o †Arabosminthus Whybrow, Collinson, Daams, Gentry & McClure, 1982; L.Mioc. SWAs.
         |     |-- †A. quadratus Whybrow, Collinson, Daams, Gentry & McClure, 1982
         |     `-- †A. isabellae López Antoñanzas & Sen, 2006
         `--o ?Sicistini Allen, 1901 [taxonomic history] (aitokoivuhiiret)
            |--o †Parasmithus Bohlin, 1946 [taxonomic history]
            |  |?- †P. sp. 1
            |  |?- †P. quartus (Shevyreva, 1970) [taxonomic history]
            |  |?- †P. xiningensis (Li & Qiu, 1980) [taxonomic history]
            |  |?- †P. lajeensis (Li & Qiu, 1980) [taxonomic history]
            |  |?- †P. huangshuiensis (Li & Qiu, 1980)
            |  |--+-- †P. asiaecentralis Bohlin, 1946
            |  |  `-- †P. tangingoli Bohlin, 1946
            |  `--+-- †P. debruijni Lopatin, 1999
            |     `--+-- †P. cubitalus (Lopatin, 1999) [taxonomic history]
            |        `-- †P. parvulus Bohlin, 1946 [taxonomic history]
            `--+?- †“Gobiosminthusqiui Huang, 1992
               `--+?- †Shamosminthus tongi Huang, 1992 [treated as a synon. of Plesiosminthus Viret, 1926 by McKenna & Bell, 1997]
                  `--o †Heterosminthus Schaub, 1930; M.-U.Mioc. EAs.
                     |?- †H. gabuniai (Lungu, 1981) [=? Sarmatosminthus gabuniai Lungu, 1981]
                     |-- †H. lanzhouensis Wang & Qiu, 2000
                     `--+-- †H. intermedius Wang, 2003
                        `--+--+-- †H. orientalis Schaub, 1930 [Paracricetulus schaubi Young, 1927 (in partim); Protalactaga tunggurensis Wood, 1936]
                           |  `-- †H. mongoliensis Zazhigin & Lopatin, 2000
                           `--+--+-- †H. firmus Zazhigin & Lopatin, 2000
                              |  `--+-- †H. honestus Zazhigin & Lopatin, 2000
                              |     `-- †H. nanus Zazhigin & Lopatin, 2000
                              `--+-- †H. jucundus Zazhigin & Lopatin, 2000
                                 `--+-- †H. erbajevae Lopatin, 2001
                                    `-- †H. mugodzharicus Zazhigin & Lopatin, 2000

Phylogenetically untreated Zapodidae: Sicistinae

Sinosminthus inapertus Wang, 1985
        †Heosminthus Wang, 1985
            †H. primiveris Wang, 1985
            †H. minutus Daxner-Höck, 2001

    †Lophocricetini Savinov, 1970 [taxonomic history]
        †Lophocricetus Schlosser, 1924 [incl. Bujoromys Lungu, 1981; Sarmantosminthus Lungu, 1981] M.-U.Mioc. Eu., U.Mioc. As.

    Sicistini Allen, 1901 [taxonomic history] (aitokoivuhiiret)
        †Plesiosminthus Viret, 1926 [taxonomic history] ?U.Eoc.-L.Mioc. As., U.Olig.-L.Mioc. Eu., U.Olig.-M.Mioc. NA.
            †P. clivosus Galbreath, 1953
        †Macrognathomys Hall, 1930; U.Mioc. NA.
        †Miosicista Korth, 1993; M.Mioc. NA.
        †Tyrannomys harkseni R.A. Martin, 1989; L.Pleist. NA.
        Sicista Gray, in Griffith, Smith & Pidgeon, 1827 [Sminthus Nordmann, in Demidoff, 1839] U.Mioc.-R. As., U.Plioc.-R. Eu. (birch mice; koivuhiiret)
            S. armenicaS. bagajevi
            S. betulina (koivuhiiri)
            S. caucasica (kaukasiankoivuhiiri)
            S. caudata
            S. concolor
            S. kazbegica
            S. kluchorica
            S. napaea (altainkoivuhiiri)
            S. pseudonapaea
            S. severtzovi
            S. strandiS. pliocaenica
            S. subtilis (arokoivuhiiri)
            S. tianshanica (tiensaninkoivuhiiri)

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