New insights on the evolution of neoceratopsian frill: ornamentations on Protoceratops
K. CHIBA, M. j. RYAN, Y. YAMAMOTO, S. KONISHI, Ts. CHINZORIG, Zo., BADAMKHATAN, Pu. KHATANBAATAR, M. SANEYOSHI, Kh. TSOGTBAATAR
SVP annual meeting 2019
brisbane, Australia