First evidence of juvenile ceratopsians (Reptilia: Ornithischia) from the Frenchman Formation (late Maastrichtian) of Saskatchewan
The first occurrence from the Frenchman Formation (late Maastrichtian) of juvenile ceratopsians (Chasmosaurinae) is reported here based on two postorbital horn-cores. The sutures confirm that the frontal attaches along the medial side of the postorbital much like that in Centrosaurinae and cannot be used as a tool for distinguishing the two ceratopsid subfamilies.