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近几十年,华北的二马营组上部地层以产出中国肯氏兽–山西鳄四足动物化石组合而闻名。最近在山西临县白道峪于上覆的铜川组一段发现了中国肯氏兽。本文描述了同一地点同一层位产出的主龙型类化石,包括一具山西鳄的部分骨架以及一些可以归入suchian的主龙类。它们是铜川组一段首次记述的主龙型类。最有鉴定特征的suchian材料包括一个大的髂骨以及一个小的、形状很奇特的、可能是跟骨的骨骼。髂骨可能可以归入一个奇异的波波龙类(poposauroid)。因为中国肯氏兽与山西鳄同时出现在白道峪,表明中国肯氏兽–山西鳄组合可以向上延伸到铜川组一段。髂骨与跟骨大小悬殊,可能代表两个从未在中国肯氏兽–山西鳄组合报道过的物种。白道峪发现了特化的波波龙类,支持了波波龙类在中三叠世大量分化的观点。
In recent decades, the upper strata of the Ermaying Formation in North China have become known for producing the Chinese kennel beast - a fossil quadruped assemblage of Shanxi crocodiles. Recently, Kampuchei Formation, a member of the Tongchuan Formation overlying the Baiduyu, Linxian County, Shanxi Province, discovered the Kanken beast in China. This article describes the main dragon-type fossils produced on the same site in the same place, including a partial skeleton of a crocodile of Shanxi and some of the main dragon species that can be classified as suchian. They are the first major genus of Tongchuan Formation described in the first class. Suchian materials with the most qualified features include a large ilium and a small, oddly shaped, calcaneal skeleton. The ilium may be classified as a bizarre poposauroid. Because the Chinese Ken beast and Shanxi crocodile at the same time appear in the White Valley, indicating that China Ken beast - Shanxi crocodile combination can be extended up to a section of Tongchuan. The iliac and calcaneal sizes are disproportionate and may represent two species that have never been reported in the Chinese Kenc-beast-Shanxi crocodile assemblage. Bai Dao Yu discovered a specialized Popolongo, supporting the idea that the Pomorons diverged widely in the Middle Triassic.