Spiclypeus
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Spiclypeus is an extinct genus of chasmosaurine ceratopsian dinosaur known from the Late Cretaceous Judith River Formation of Montana, United States.
Life restoration with speculative quills
Spiclypeus group defending against Daspletosaurus
Dinosaur Park Formation
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The Dinosaur Park Formation is the uppermost member of the Belly River Group, a major geologic unit in southern Alberta. It was deposited during the Campanian stage of the Late Cretaceous, between about 76.5 and 74.4 million years ago. It was deposited in alluvial and coastal plain environments, and it is bounded by the nonmarine Oldman Formation below it and the marine Bearpaw Formation above it.
Dinosaur Park Formation exposed along the Red Deer River in Dinosaur Provincial Park, southeastern Alberta, Canada.
Image: Edmontonia rugosidens armour AMNH 5381
Image: Panoplosaurus
Image: Chasmosaurus BW