Montana's state fossil, the Maiasaura, had this type of mouth, like the platypus
[DOC] [TLE] Quia - Examination #4--From Jeopardy--"OFFICIAL STATE ... [PAR] Examination #4--From Jeopardy--"OFFICIAL STATE DINOSAURS & FOSSILS--
Montana's state fossil, the Maiasaura, had this type of mouth, like the platypus.".