From the album: Vertebrates
Liaobatrachus beipiaoensis (Gao and Wang, 2001)
Early Cretaceous
Lingyuan
Liaoning
PRC
Former name was Callobatrachus sanyanensis
Lit.: L, Rocˇek Z, Wang Y, Jones MEH (2013) Anurans from the Lower Cretaceous Jehol Group of Western Liaoning, China. PLoS ONE 8(7): e69723. doi:10.1371/journal.pone.0069723.
You can download the paper here: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0069723