正模標本(編號IVPP V 23401)出土於金剛口組,年代為坎潘階(7300萬年前),包含部分頭骨含下頜,共有左上頜骨、右鱗狀骨、左齒骨保存下來。還有其他標本被歸入:IVPP V 23402和IVPP V2340都是年輕個體的頭骨含下頜;IVPP V 23404是成年體的左齒骨,大於正模標本;IVPP V 23405是一個年輕個體的上頜骨和顴骨,體型約是正模標本的一半。[1]
^Zhang, Yu-Guang; Wang, Ke-Bai; Chen, Shu-Qing; Liu, Di; Xing, Hai. Osteological Re‐assessment and Taxonomic Revision of "Tanius laiyangensis" (Ornithischia: Hadrosauroidea) from the Upper Cretaceous of Shandong, China. The Anatomical Record. 2019. doi:10.1002/ar.24097.
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