Santaisaurus yuani (Koh 1940, Early Triassic) Li (1989) nested Santaisaurus with Paliguana at the base of the lepidosauriformes. Here Santaisaurus nests with Sauropareion basal to Coletta and Paliguana.

Relative to Sauropareion, Santaisaurus had a smaller naris and orbit.

Koh T-P 1940. Santaisaurus yuani gen. et sp. nov., ein neues Reptil aus der unteren Trias von China. Bulletin of the Geological Society of China 20(1):73-92.

Li J-L 1989. A New Genus of Procolophonidae from Lower Triassic of Shaanxi, China. Vertebrata PalAsiatica 27(4):248-267.