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1 January 2016 A High-Latitude Dromaeosaurid, Boreonykus certekorum, gen. et sp. nov. (Theropoda), from the Upper Campanian Wapiti Formation, West-Central Alberta
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Abstract
Dromaeosaurids were rare components of most Late Cretaceous terrestrial ecosystems and are poorly known from high palaeolatitudes. New dromaeosaurid material, including a frontal and associated postcranial elements, is described from a dense monodominant ceratopsid bonebed on Pipestone Creek, near the city of Grande Prairie (Unit 3, Wapiti Formation, upper Campanian), central-western Alberta, Canada. This stratigraphic interval is significant because it records a period of terrestrial deposition at a time when much of the western interior of Canada and the United States was inundated by the Bearpaw Sea. A phylogenetic analysis recovers Boreonykus certekorum, gen. et sp. nov., as a derived eudromaeosaur, possibly within Velociraptorinae. The identification of a new dromaeosaurid from the Wapiti Formation simultaneously helps fill an important gap in the record of late Campanian dromaeosaurids, bolsters support for a partly endemic fauna within the Wapiti Formation, and potentially adds to the North American record of a predominantly Asian Velociraptorinae.
© by the Society of Vertebrate Paleontology
Phil R. Bell and Philip J. Currie "A High-Latitude Dromaeosaurid, Boreonykus certekorum, gen. et sp. nov. (Theropoda), from the Upper Campanian Wapiti Formation, West-Central Alberta," Journal of Vertebrate Paleontology 36(1), (1 January 2016). https://doi.org/10.1080/02724634.2015.1034359
Received: 16 October 2014; Accepted: 1 March 2015; Published: 1 January 2016
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