Tlatolophus galorum was named by Ramírez-Velasco et al. (2021). Its type specimen is CIC/P/147, a partial skeleton, and it is a 3D body fossil. Its type locality is Dinopato site (JLE-1), which is in a Campanian delta plain mudstone/sandstone in the Cerro del Pueblo Formation of Mexico. It is the type species of Tlatolophus.