ORDER TESTUDINES

The present collection of turtles from the Judith River Formation consists of isolated and fragmentary carapace and plastron plates. These are in most instances inadequate for generic identification and only two genera have been distinguished, namely Trionyx and Basilemys . Baenid turtles may also be present but the material is too fragmentary for identification. The chelonians previously reported from the Judith River Formation are Baena, Polythorax, Plastomenus, and possibly Adocus (see Hay, 1908).