Minn. Stat. § 84.1525: STROMATOLITES.

Subdivision 1. Permit required.

A person may not possess, move, or disturb a stromatolite located in waters of the state except under a permit issued by the commissioner.

Subd. 2. Rules.

The commissioner may adopt rules establishing criteria and procedures for:

(1) the issuance of stromatolite permits with reasonable conditions; and

(2) the denial, modification, suspension, or revocation of stromatolite permits for cause.