Species: lincheyuensis (YOUNG, 1961) YOUNG, 1974
Etymology:
= Ordosidon lincheyuensis YOUNG, 1961
Holotype: IVPP V2483
Locality: Linzheyu, Baode, Shaanxi (Shensi) Province, China.
Horizon: Lower Ermaying Formation.
Biostratigraphy:
Age: Late Early Triassic.
Material: A fragmentary left jaw with 12 broken teeth or alveoli.
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Species: youngi (HOU, 1979)
Etymology: In honor of C. C. Young.
= Ordosia youngi HOU, 1979
Holotype: IVPP V 4786
Locality: Jungar Qi region, Yih Ju Meng, Inner Mongolia, China.
Horizon: Lower Er-Ma-Ying Formation.
Biostratigraphy:
Age: Late Early Triassic.
Material: Fragmentary skull, dentary and fragmentary skeleton.