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Horseshoe Canyon dinosaurs

Are saurolophine bonebeds present in Unit 1 of the Horseshoe Canyon formation? I thought pachyrhinosaur bonebeds occur in Unit 1, and Saurolophus is stratigraphically higher. Also, what taxa are present in a theropod dominated bonebed in the upper Horseshoe Canyon, designated MNI 13? I was previously aware of an Albertosaurus bonebed, but that was designated MNI 12 last year.

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