Abstract: Peng (1995) briefly reported a specimen (ZDM3403) of Schuanosuchus huidongensis Peng, 1995, a protosuchian from the purplish-red mudstone of the Late Jurassic Shangshaximiao Forrnation at Daquekou, the suburb of Zigong City. This material is the first occurrence of the protosuchian from the Late Jurassic in Sichuan Basin and the most well—preserved protosuchian fossil ever found in China. The present paper is a detailed description of it.