Jafarbeigloo, F., M. Majidifard, B. Hamdi, A. Asghari, and M. Arian. “Biostratigraphy of the Upper Devonian Khoshyeilagh Formation in NE Iran Based on Conodonts and Other Faunas”. Revista Brasileira De Paleontologia, vol. 24, no. 1, Jan. 2021, pp. 21-36, doi:10.4072/rbp.2021.1.02.