Abstract: A new species of the thalattosaur genus Anshunsaurus is described from the Zhuganpo Member of the Falang Formation, Ladinian. It differs from the geologically younger Anshunsaurus huangguoshuensis (from the Wayao Member of the Falang Formation, lower Carnian) in many morphological characteristics as well as in a smaller size at adult stage. Both occurrences are in the marine Triassic of southwestern Guizhou Province, China.

摘要： 中国的海龙类以前仅发现于法郎组瓦窑段，包括安顺龙和新铺龙两属。最近在法郎组竹杆坡段也发现了海龙化石(完整的骨架，中国科学院古脊椎动物与古人类研究所标本编号V 13782), 被归入安顺龙属。标本产自贵州兴义乌沙，时代是中三叠世拉丁期。 此标本小于黄果树安顺龙两个已知标本，但是根据以下特征判断应该是个成年个体：头骨相对较小，许多骨缝愈合，髓椎线(neurocentral suture)封闭，肱骨上各种结构已经显著分化，掌骨和跗骨骨化程度高。根据以下特征建立一新种，乌沙安顺龙(Anshunsaurus