News of a new horned dinosaur, Albertaceratops nesmoi made headlines earlier this month but I am a little behind! Though the dinosaur was discovered in 2001 and described in Ryan’s 2003 dissertation (as Medusaceratops) it has now been formally published. The generic name means ‘Alberta horned face’ and the specific name honours Cecil Nesmo, a rancher from Southern Alberta who aided the palaeontologists recovering the fossil.The animal, known from a single complete skull and postcranial fragments, is from the middle Campanian (Upper Cretaceous) Oldman Formation of Alberta, Canada, and Judith River Formation of Montana, USA.
Distinctive features include: long brow horns a bony ridge over its nose two large outwardly-projecting hooks on its frill. Ryan’s phylogenetic found it to be the most basal centrosaurine known.
Ryan, M.J. (2007). A new basal centrosaurine ceratopsid from the Oldman Formation, southeastern Alberta. Journal of Paleontology 81(2):376-396.
