Apatosaurus which Marsh had described "Brontosaurus". Most of the skeleton was found, and after comparison with both "Brontosaurus" and "Apatosaurus ajax", Riggs realized that the holotype of "A.ajax" was immature, and thus the features distinguishing the genera were not valid. Since "Apatosaurus" was the earlier name, "Brontosaurus" should be considered a junior synonym of "Apatosaurus". Because of this, Riggs recombined "Brontosaurus excelsus" as "Apatosaurus excelsus". Based on comparisons with other species proposed to belong to "Apatosaurus", Riggs also determined that the Field Columbian Museum specimen was likely most similar to "A.excelsus". Despite Riggs' publication, Henry Fairfield Osborn, who was a strong
The Known Lands the various sentient races have built nations and civilizations. It is a time of peace and prosperity. But though peace reigns over much of The Known Lands, it is not a time of tranquility. In the past fifty years, The Known Lands have been shocked with the realization that below their islands exists a subterranean world at least as large as their own – the Underdark. A formerly unknown race, the drow, has twice come into the Known Lands from this underworld. Two massive attacks by the drow have all but destroyed the citadel homelands of the dwarves, leaving that