Reference
Efimov, V. M., Meleshin, I. A. and Nikiforov, A. V. 2016. A new species of the plesiosaur genus Polycotylus from the Upper Cretaceous of the Southern Urals. Paleontological Journal, 50 (5), 494–503. DOI: 10.1134/S0031030116050051
Efimov, V. M., Meleshin, I. A. and Nikiforov, A. V. 2016. A new species of the plesiosaur genus Polycotylus from the Upper Cretaceous of the Southern Urals. Paleontological Journal, 50 (5), 494–503. DOI: 10.1134/S0031030116050051