Serratos, D. J., Druckenmiller, P. and Benson, R. B. J. 2017. A new elasmosaurid (Sauropterygia, Plesiosauria) from the Bearpaw Shale (Late Cretaceous, Maastrichtian) of Montana demonstrates multiple evolutionary reductions of neck length within Elasmosauridae, Journal of Vertebrate Paleontology, 37, (2), e1278608.