The Wapiti Formation (WF) spans some 12 million years (~79–67 Ma), equivalent to the famed dinosaur-bearing beds of the Belly River and Edmonton groups in southern Alberta. Unlike these units, the WF preserves a continuous terrestrial record filling major gaps left by marine transgressions (e.g., Bearpaw Formation). The WF, therefore, provides important insights into macroevolutionary dynamics during the Late Cretaceous and, given the inferred high paleolatitudes for this region, faunal interchange with its southern counterparts. Despite these obvious incentives, collecting and prospecting in the WF are hampered by the restriction of surface outcrops to river valleys and it is only recently that we are beginning to uncover the faunal diversity of these deposits. Here we present the first lambeosaurine from the WF, found in the Bearpaw-equivalent Unit 3. Discovered in 2017 along the northern bank of the Wapiti River, the skeleton preserves a number of features that permit taxonomic evaluation, despite its juvenile state. The cranial anatomy, specifically the crest, reveals a bifurcated nasal, typical of both Corythosaurus and Hypacrosaurus but not Lambeosaurus. Diagnostic characters of the former genera are difficult to assess in juveniles, but the anteriorly straight to convex lacrimal and the
