Wyo. Stat. § 34-5-111
In any action contemplated in the preceding section, commenced and brought by an heir or devisee of such deceased person in this action contemplated, or the successor in interest of such heir or devisee, if it shall appear that such heir or devisee had knowledge, either by personal notice, or constructively under the laws of the state where the estate of such deceased person was administered, of the fact of the sale or the conveyance of such real estate mentioned in the two (2) preceding sections, or where such person appeared in the proceedings in court relating thereto, it shall be prima facie evidence against such devisee and heir, and against any successor in interest of such heir or devisee without adequate consideration, that such heir and devisee consented to such sale and conveyance, and intended thereby, and did thereby, vest in the purchaser under such conveyance, or sale, all the right, title and interest which such devisee and heir had in and to such real estate so sold or conveyed at the time of such sale or conveyance, and meant to be estopped thereby to claim any future title or interest therein, and if such action is brought by the successor in interest of such heir or devisee, it shall be presumed in the first instance, that such successor in interest is such without adequate consideration, and provided further, that in all such actions, all such conveyances shall be prima facie of the effect as vesting the complete and clear title of the property conveyed in such conveyance in the grantee therein.
W.S. 34-5-111