lambeosaurine from the continent. Prieto-Márquez et al. (2013) used this material to establish a new taxon, Canardia garonnensis. A maxilla, specimen MCD 4919, was referred to P. isonensis in 2013. It possessed traits of the tsintaosaurin tribe which Pararhabdodon was by that point assigned to. It was referable to Pararhabdodon in particular because of the rostrocaudally broad rostrocaudal region of the maxilla, a trait unique to P. isonensis among the tribe. The specimen was discovered at the Serrat del Rostiar 1 locality, part of the Conques Formation; this is part of the Tremp Group just like the type locality, but in a lower section of the strata, making it older. The referral to Pararhabdodon thus extended the range of the genus further within the upper Maastrichtian. A 2019 paper questioned the referral of MCD 4919 to P. isonensis. The specimen was found to have a differing compared to the maxilla of the holotype, which would conflict with belonging to the same species. As the specimen was still recognized as having tsintaosaurin characteristics, the authors still considered it to likely belong to a close relative of P. isonensis. The same 2013 study also evaluated Blasisaurus canudoi, from the Blasi 1 locality of the underlying Arén Formation, and Arenysaurus ardevoli, from the Blasi 3 locality of the La Posa Formation, another part of the Tremp Group. Previously claimed diagnostic traits of the two taxa were shown to be found in other hadrosaurs. This left the former with two unique characteristics - both in the jugal - and a unique combination of other characteristics, and the latter with only one unique characteristic - in the frontal. As overlapping fossils were not known for the relevant areas, it could not be ruled out that they were indeed synonymous, representatives of a single species. The same re-evaluation could not rule out that this single species or either of the separated species were synonyms of Pararhabdodon isonensis, as no taxonomically informative areas of the skeleton are known from both Pararhabdodon and the other two taxa. The authors refrained from considering any of them representatives of one species pending data from more material. The Pararhabdodon himdlimb described in 2020 allowed for synonymy with Arenysaurus to be ruled out, as the femurs of the two taxa were anatomically distinct. A hadrosaur mega-bonebed, later termed the Basturs Poble bonebed, was discovered in outcrops of the Conques Formation during the