 The end is wide compared to the main spine, but approximately subequal in length and width.A partial forelimb, provisionally referred to "Amphicoelias" by Osborn & Mook in 1921, resembles "Diplodocus" but is more robust overall.The distal end of the scapula, while only partially preserved, show that the expansion of the was smaller than "Camarasaurus" but larger than "Apatosaurus".