A mid-August kayak trip down the Arkansas River in south-central Kansas took a fascinating turn for sisters Ashley and Erin Watt when they happened upon a massive skull protruding from a sandbar. It was partially buried nose down, but they immediately knew the shape was unique. When they pulled it from the sand and saw the large teeth of a carnivore, they knew they had something special.

With a little research, Ashley and Erin determined they had likely found a bear skull. They shared their exciting discovery in a Facebook post, which caught the eyes of local Kansas Department of Wildlife, Parks and Tourism (KDWPT) game warden Chris Stout. Stout shared the photos with colleagues, and they eventually reached Sternberg Museum of Natural History paleontologists Dr. Reese Barrick and Mike Everhart who provided insight into the significance of the finding.

While Barrick and Everhart quickly verified the sisters’ suspicions that this was a bear skull, the large size – approximately 16 inches long by 8.5 inches wide – and fossilized appearance left them questioning whether this was a modern grizzly or a more primitive species from the past. The skull is believed to have been deposited into the Ark River sands – an excellent substrate for preservation – and maintained there until it was displaced by this year’s historic floods.

(Read more: Hays Post)