New Pareiasaur Fossils From Changhsingian Permian China Have Taxonomy Implications

New specimens of pareiasaurs from the Upper Permian Sunjiagou Formation of Liulin, Shanxi and their implications for the taxonomy of Chinese pareiasaurs

Authors:

1. Li Xing-Wen (a)
2. Liu Jun (a)

Affiliation:

a. Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Beijing 100044

Abstract:

New pareiasaur specimens from the Sunjiagou Formation of Xuecun, Liulin, Shanxi,China are described. These new specimens comprise two marginal teeth from the upper jaw (IVPP V 18613) and an incomplete left dentary with teeth (IVPP V 18614). They provide novel anatomical information and allow the direct comparison of Sanchuansaurus pygmaeus with Huanghesaurus liulinensis. The two taxa cannot be differentiated by the known features, and both taxa are declared junior synonyms of Shansisaurus xuecunensis.