Dimetrodon limbatus (specimen 02)

Partial dimetrodon sail spine process (D. limbatus) from the early Permian period

Actinopterygii sp. (specimen 04)

Unidentified fish premaxillary jaw bone (Actinopterygii sp.) from the Miocene epoch

Megacerops coloradensis (specimens 45-46)

Titanothere rib fragments (M. coloradensis) from the Oligocene epoch

Mammuthus columbi (specimens 36-37)

Columbian mammoth tooth slices (M. columbi) from the late Pleistocene epoch

Mammalia sp. (specimens 23-25)

Unidentified mammal bone fragments (Mammalia sp.) from the Eocene epoch

Cetacea sp. (specimens 13-15)

Dolphin or porpoise rib fragments (Cetacea sp.) from the Miocene epoch

Delphinidae sp. (specimens 08-12)

Dolphin prexmaxillary rostrum fragments (Delphinidae sp.) from the Miocene epoch

Cetacea sp. (specimens 05-07)

Dolphin or porpoise vertebrae fragments (Cetacea sp.) from the Miocene epoch

Mammuthus columbi (specimen 02)

Columbian mammoth tooth fragment (M. columbi) from the late Pleistocene epoch

Triceratops horridus (specimens 28-31)

Triceratops frill fragments (T. horridus) from the late Cretaceous period