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• Mammuthus primigenius (Blumbach)
• Triceratops horridus Marsh, 1889
• Limnofregata azygosternon Olson
• Hoplophoneus primaevus Leidy & Owen, 1851: Skull
• Isthminia panamensis Pyenson et al., 2015: Scapula
• Isthminia panamensis Pyenson et al., 2015: Skull
• Odobenocetops peruvianus De Muizon
• Ontocetus oxymycterus Kellogg: Rostrum
• Ontocetus oxymycterus Kellogg: Tooth
• Proalopecopsis haughtoni Brink & Kitching, 1951
• Thrinaxodon liorhinus Seeley, 1894
• Nothrotherium shastense Sinclair, 1905
• Stephanoceras (Skirroceras) juhlei Imlay
• Paleoscolytus divergus Walker
• Supaia merriami White
• Cycadeoidea pulcherrima Ward
• Prefica nivea Olson
• Chimaerotheca alaskana Brown
• Chimaerotheca newmexicana Brown
• Chimaerotheca montanana Brown
• Hoplophoneus primaevus Leidy & Owen, 1851: Jaw
• Peratherium cf. hunteri (Cope)
• Eubrontes platypus Lull
• Genus indet. sp indet.

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