060-11 Wyo. Code R. § 11-6
(a) For the purposes of an Exclusive Commercial Fossil Removal Permit, specimens of the following fish genera are deemed common and approved for sale without review or royalty by the Office or its agent: Knightia, Diplomystus, Priscacara, Phareodus, Mioplosus, Notogoneus and Amphiplaga. Additionally, common specimens of gastropods, bivalves, coprolites and plant fossils, as illustrated in the Geological Survey of Wyoming's Bulletin 63 (1984 Edition) are approved for sale without review or royalty. Specimens of gars, rays, bowfins and paddlefish are approved for sale without review, however, these specimens are subject to Section 7 - Commercial Fossil Permit Royalties.
(b) All specimens not specifically listed in this Section above, are deemed rare and unusual and must be reported to the Office within thirty (30) days of discovery. Such specimens may be sold only upon approval of the Office and only after consultation with the Wyoming Geological Survey pursuant to establishing the rarity or scarcity of the specimens. If approved for sale, such specimens bear the royalty set out in Section 7 of these rules. Any specimens not approved for sale are the property of the State of Wyoming, and must be turned over to the State as directed by the Office. Such specimens shall be delivered on site to the Office or its agent or to the Wyoming Geological Survey, at the option of the Board. Such specimens shall be receipted by the State's representative when turned over by the permittee. Upon termination of any Commercial Fossil Permit, any and all rare and unusual specimens in a permittee's possession either on site or at any other location used by a permittee or permittee's agents for preparation or sale shall be acknowledged and turned over to the Office within thirty (30) days of permit termination.
(c) No fossil collected under a Non-Exclusive Scientific Fossil Removal Permit may be removed from the State without the written consent of the Board. Such consent may be requested by a permit applicant/permittee at the time of permit application. As a condition of approval for the removal of paleontological specimens collected under such a permit, permittees must acknowledge, in writing, that such specimens shall forever remain the property, and under the ownership, of the State of Wyoming; and, that such specimens shall be treated as on loan to the permittee, and providing in writing, the permittee's waiver and the waiver of the institution or association represented by the permittee, of any form of lien against the ownership and possession rights of the State of Wyoming, its Board of Land Commissioners, and the Office of State Lands and Investments unless at the discretion of the Board, such specimen(s) are traded to the permittee and relinquished by the Board, in writing, in exchange for specimens of equal value. Relinquishment of specimens on loan, and exchange for equal value specimens, will be acted upon based upon the written request of either the permittee or the Wyoming Geological Survey.
(d) All commercial and scientific fossil inventories recovered from State fossil permit areas, must be maintained separately from other inventories permittees maintain, or individually tagged or marked by Wyoming permit number.
060-11 Wyo. Code R. § 11-6