↑Left, "Juvenile Alamosaurus" TMM 43621-1. Center, composite of "Rough Run Titanosaur" TMM 45890-1 (tibia), 45890-2 (ungual), 45891-1, 2, 4, 12, 13, 15, 16, 17 (dorsal vertebrae and pelvic girdle), 45891-9 (caudal vertebra), 45891-10 (hume…