Wyo. Stat. § 15-1-105: Governing bodies; meetings; quorum; executive sessions.

Public meetings of the governing body shall be held in accordance with W.S. 16-4-401 through 16-4-408. Special meetings may also be called by a majority of the qualified members of the governing body. A majority of all the qualified members of the governing body constitutes a quorum for the transaction of business, but any number may adjourn a meeting to compel the attendance of and punish absent members. If the nature of the business so requires, the governing body by a vote of two-thirds (2/3) of the members present, may go into executive session and exclude the public therefrom.