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| | †Tritylodontidae |
 | | magnum Chow, 1962 ?- †Chalepotherium plieningeri Ameghino, 1903 [Oligokyphus??] -- †Diazhongia longirostrata Cui, 1981 [= Lufengia delicata Chow and Hu, 1959??] -- †Dinnebitodon amarali Sues, 1986a -- †Kayentatherium wellesi (Kermack, 1982) [Nearctylodon broomi Lewis, 1986; Kayentotherium] --o †Lufengia Chow and Hu, 1959 |
 | | delicata Chow and Hu, 1959 [= Diazhongia longirostrata Cui, 1981??] --o †Oligokyphus Hennig, 1922 [Chalepotherium, Mucrotherium von Huene, 1933, Uniserium von Huene, 1933] |
 | | Luo, Z.-X. and Sun, A.-L., 1993: Oligokyphus (Cynodontia: Tritylodontidae) from the Lower Lufeng Formation (Lower Jurassic) of Yunnan, China. |
| www.fmnh.helsinki.fi /users/haaramo/Metazoa/Deuterostoma/Chordata/Synapsida/Theriodontia/Tritylodontidae.htm (404 words) |
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