2025 Session Last amended: 2025 session

§ 1.1466 — State Fossil

Plain-Language Summary

The giant beaver is the official state fossil of Minnesota. It is known as Castoroides ohioensis in science, capa in Dakota, and amik in Ojibwe. A photograph approved by the commissioner of natural resources is kept in the Office of the Secretary of State.

Practical Notes
This designation was adopted in 2025. The giant beaver was an ice-age mammal that once lived in what is now Minnesota. The inclusion of Dakota and Ojibwe names reflects recognition of indigenous knowledge and connection to the land.