The exceptionally preserved Dacentrurus armatus cranium from Riodeva, described in a peer-reviewed Vertebrate Zoology paper by Sánchez Fenollosa and Cobos, moves beyond simple morphology to challenge longstanding models of stegosaur dispersal. This single adult specimen from the Villar del Arzobispo Formation, dated to the Late Jurassic, supplies the most complete European stegosaur skull yet, enabling direct comparisons of braincase and snout characters that were previously inferred from fragments. The authors' new clade Neostegosauria unites medium-to-large forms across Africa, Europe, North America, and Asia, implying earlier and more frequent intercontinental movements than the classic Laurasia-Gondwana framework allows. Earlier phylogenetic work by Maidment et al. (2018) in Journal of Systematic Palaeontology already hinted at Asian-Euro-American links, while Zhou et al.'s 2022 descriptions of Tuojiangosaurus material from China supply supporting postcranial evidence the Spanish study now integrates. Original coverage underplays methodological limits: the analysis rests on one skull with no associated juvenile material for ontogenetic checks and uses a modest character matrix that future discoveries could overturn. The site’s ongoing yield of additional bones offers a rare chance to test these relationships, yet single-specimen phylogenies inherently carry high uncertainty until corroborated by broader sampling.