Prehistoric Mammal Fossil Exhibits

skull of a local Stegomastodon


The Stegomastodon lived from 800,000 to 1,200,000 years ago, and was probably 8 feet high at the shoulder, with six foot tusks.

The museum’s specimen was found locally by Ann Wellborn and excavated by the New Mexico Bureau of Mines and Mineral Resources, under the direction of Dr. Don Wolberg.


The Woolly Mammoth skull on exhibit was also found near Truth or Consequences, in the Middle Rio Grande Valley.

Usually inhabiting more upland regions, the Woolly Mammoth stood 10-14 feet high and weighed up to 8 tons. This massive creature sported a heavy coat and up to 3 inches of fat for warmth. It coexisted with early humans, who hunted it for food and used its bones and tusks for tools and to build homes. The Woolly Mammoth appears frequently in art from the ice age (a period of major glaciation); only horses and bisons are depicted more often.

skulls of prehistoric mammals, both found near Truth or Consequences