Redescription of Gargoyleosaurus parkpinorum, a polacanthid ankylosaur from the Upper Jurassic of Albany County, Wyoming
The polacanthid ankylosaur Gargoyleosaurus parkpinorum is described in detail for the first time. The partial skeleton indicates a small individual about 3-3.5 m long. Distinguishing features include a skull longer than wide, with laterally facing nostrils and large postorbital horns slightly overlapping onto the squamosal and a known armor pattern, as the armor was preserved in situ. Many features present in Gargoyleosaurus are also found in other polacanthids. While controversy surrounds the phylogenetic relationships amongst the polacanthids, it would appear that these taxa are closely related by the number of shared affinities.