sentences:  Woodward (1885) referred the species to the genus "Dakosaurus".Lydekker (1888) synonymized "P. manselii" with "Dakosaurus maximus" while Fraas (1902) regarded the two species to be synonymous or closely related.Phylogenetic analyses of Young & Andrade (2009), Cau & Fanti (2011) and Young "et al."