Apatosaurus of gigantic sauropod dinosaurs. The family includes some of the longest creatures ever to walk the earth, including "Diplodocus", "Supersaurus", and "Barosaurus". "Apatosaurus" is sometimes classified in the subfamily Apatosaurinae, which may also include "Suuwassea", "Supersaurus", and "Brontosaurus". Othniel Charles Marsh described "Apatosaurus" as allied to "Atlantosaurus" within the now-defunct group Atlantosauridae. In 1878 Marsh raised his family to the rank of suborder, including "Apatosaurus", "Atlantosaurus", "Morosaurus" (="Camarasaurus") and "Diplodocus". He classified this group within Sauropoda, a group he erected in the same study. In 1903 Elmer S. Riggs said the name Sauropoda would be a junior synonym of earlier
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