Wyo. Stat. § 14-2-806: No limitation; child having no presumed, acknowledged or adjudicated father.

(a) A proceeding to adjudicate the parentage of a child having no presumed, acknowledged or adjudicated father may be commenced at any time, even after:

(i) The child becomes an adult but only if the child initiates the proceeding; or

(ii) An earlier proceeding to adjudicate paternity has been dismissed based on the application of a statute of limitation then in effect.