Tan, J.J., Ren, D. and Shih, C.K. 2006. First record of fossil Priacma (Coleoptera: Archostemata: Cupedidae) from the Jehol Biota of western Liaoning, China. Zootaxa. 1326, 1 (Oct. 2006), 55–68. DOI:https://doi.org/10.11646/zootaxa.1326.1.6.