Galeamopus

Galeamopus is a genus of herbivorous diplodocid sauropod dinosaurs. It contains two known species: Galeamopus hayi, known from the Late Jurassic lower Morrison Formation (Kimmeridgian age, about 155 million years ago) of Wyoming, United States, and Galeamopus pabsti, known from Wyoming and Colorado. The type species is known from one of the well-preserved diplodocid fossils, a nearly complete skeleton with an associated skull.

==History== thumb|left|G. hayi skull (specimen AMNH 969) The first specimen referred to Galeamopus was collected by Marshall P. Felch in September, 1884 at his quarry in Garden Park, Colorado. The specimen consisted of a partial skull and mandibles, which Felch sent to his employer at the Yale Peabody Museum, Othniel Charles Marsh, but was later deposited at the National Museum of Natural History (USNM V 2673). It was referred to Diplodocus for many years until Tschopp et al referred the remains to Galeamopus in 2015 and Galeamopus pabsti in 2017.