Frey, E.; Mulder, E. W. A.; Stinnesbeck, W.; Rivera-Sylva, H. E.; Padilla-Gutiérrez, J. M. and González-González, A.H. 2017. A new polycotylid plesiosaur with extensive soft tissue preservation from the early Late Cretaceous of northeast Mexico. Boletín de la Sociedad Geológica Mexicana. 69 (1), 87–134.