This object is part of the Education and Outreach collection, some of which are in the Q?rius science education center and available to see.
Cenozoic - Quaternary - Pleistocene
This upper molar from an extinct American Mastodon. The molar's three cone ridges with an open valley between each cone make it look much like a mountain range. As herbivores, mastodons ate only plants. The molars ground down plant material such as twigs, cones, and leaves. A worn out molar would fall out at the front of the jaw and a new molar from the back would move forward into the open spot. This molar is about 9.5cm thick and measures around 12.5cm x 7.35cm.