Spiclypeus
Spiclypeus ( meaning "spike shield" ) is an extinct genus of chasmosaurine ceratopsian dinosaur known from the Late Cretaceous Judith River Formation ( late Campanian stage ) of Montana , United States . 
<triplet> Late Cretaceous <subj> Campanian <obj> has part <triplet> Judith River Formation <subj> Montana <obj> located in the administrative territorial entity <triplet> Campanian <subj> Late Cretaceous <obj> part of