Alamosaurus
Alamosaurus (; meaning "Ojo Alamo lizard") is a genus of titanosaurian sauropod dinosaurs, containing a single known species, Alamosaurus sanjuanensis, from the late Cretaceous Period of what is now southern North America. Isolated vertebrae and limb bones indicate that it reached sizes comparable to "Argentinosaurus" and "Puertasaurus", which would make it the largest dinosaur known from North America. Its fossils have been recovered from a variety of rock formations spanning the Maastrichtian age of the late Cretaceous period. Specimens of a juvenile "Alamosaurus sanjuanensis" have been recovered from only a few meters below the Cretaceous-Paleogene boundary in Texas, making it among the last surviving non-avian dinosaur species.
Two Medicine Dinosaur Center
The Two Medicine Dinosaur Center is a 501(c)(3) non-profit and educational institute located in Bynum, Montana that opened in 1995. It is part of the Montana Dinosaur Trail and home to a skeletal model of what is believed to be the world's largest dinosaur, a seismosaurus.
The center also houses the first baby dinosaur bones collected in North America - the original discovery reported by paleontologist John R. Horner.