6.2" Hadrosaur (Kritosaurus) Jaw Section - Texas

This a 6.2" long jaw section (mandible) of a Hadrosaur (duck-billed dinosaur) from the Aguja Formation of Texas. It's likely from Kritosaurus navajovius, but little collecting and research has been done on the formation, so it's tough to put a definitive ID on it. The formation is the equivalent of the Judith River Formation in the Northern US/Canada. There are several repaired cracks in the piece but no restoration.

This specimen was collected within the past year on private deeded property in Brewster County, Texas. You won't see any other dinosaur material from the Aguja & Javelina Formations for sale because nearly all of the formation lies the borders of a national park or in Mexico which can not be collected. One of our partners was lucky enough to purchase several hundred acres of ranch land in Texas containing a good exposure of these formations and we will be offering more material from the locality in the future.