Pauliv, V. E., E. V. Dias, F. A. Sedor, L. C. Weinschütz, and A. M. Ribeiro. “A New Symmoriiform Shark and Other Chondrichthyan Teeth from the Earliest Permian of Southern Brazil”. Revista Brasileira De Paleontologia, vol. 26, no. 3, Oct. 2023, pp. 227–237, doi:10.4072/rbp.2023.3.07.