Yan, Zhuo, Ming Bai, and Dong Ren. 2012. “A New Fossil Hybosoridae (Coleoptera: Scarabaeoidea) from the Yixian Formation of China”. Zootaxa 3478 (1). Auckland, New Zealand:201–204. https://doi.org/10.11646/zootaxa.3478.1.21.