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By: Zietlow, Amelia R., - Boyd, Clint A., - Van Vranken, Nathan E.,Edition:Publication info: New York, NY, American Museum of Natural History, [2023]Volume: no.464 (2023)Series:Holding Institution: American Museum of Natural History LibrarySubjects: Classification Cretaceous Jormungandr walhallaensis Lizards, Fossil Mosasauridae North Dakota Paleontology Pierre Shale SquamataBHL Collections: