14-2-501. Establishment of parent-child relationship. (a) The mother-child relationship is established between a woman and a child by: (i) The woman's having given birth to the child; (ii) An adjudication of the woman's maternity; or (iii) Adoption of the child by the woman. (b) The father-child relationship is established between a man and a child by: (i) An unrebutted presumption of the man's paternity of the child under W.S. 14-2-504; (ii) An effective acknowledgment of paternity by the man under article 6 of this act, unless the acknowledgment has been rescinded or successfully challenged; (iii) An adjudication of the man's paternity; (iv) Adoption of the child by the man; or (v) The man's having consented to assisted reproduction by his wife under article 9 of this act which resulted in the birth of the child.
Wyoming Legal Code