 The pubis of "Amphicoelias" is very fragmentary, and the only discernible characteristics are that it is long but thick, and has a small surface for articulation with the .A single, slender right femur of "Amphicoelias" is known from the holotype, long.It is slightly longer than the femur of "Camarasaurus supremus", but significantly less robust, being approximately round in cross-section and only wide.