Apatosaurus considered a junior synonym of "Apatosaurus"; its only species was reclassified as "A.excelsus" in 1903. A 2015 study concluded that "Brontosaurus" is a valid genus of sauropod distinct from "Apatosaurus", but not all paleontologists agree with this division. As it existed in North America during the late Jurassic, "Apatosaurus" would have lived alongside dinosaurs such as "Allosaurus", "Camarasaurus", "Diplodocus", and "Stegosaurus". "Apatosaurus" was a large, long-necked, quadrupedal animal with a long, whip-like tail. Its forelimbs were slightly shorter than its hindlimbs. Most size estimates are based on specimen CM3018, the type specimen of "A.louisae". In 1936 this was measured to
Tomb of the Known Soldier military burial in France. Charles’ mother received the telegram from the War Department that her son was killed in the war. After waiting four long years, she finally claimed her son’s body when it arrived on a troopship called the "Cambria" on March 29, 1922. The U.S. Government had the idea of creating the Tomb of the Unknown Soldier and of a "Known Soldier" in Arlington National Cemetery to honor World War I soldiers. Graves was chosen for "America's Known Soldier" by a blindfolded sailor who picked Graves' name from an American soldier remains list, but his mother objected to