American scientists thought the missing body to be Anastasia because none of the female skeletons showed the evidence of immaturity, such as an immature collarbone, undescended wisdom teeth, or immature vertebrae in the back, that they would have expected to find in the seventeen-year-old Anastasia. In 1998, when the bodies of the Imperial Family were finally interred, a body measuring approximately 5 feet 7 inches was buried under the name of Anastasia. Photographs taken of the four sisters up until six months before the murders demonstrate that Maria was several inches taller than Anastasia and was also taller than her sister Olga. However, the heights of the skeletons had to be estimated because some of the bones had been cut and portions of the skeletons were missing. Since teeth and large portions of the jaw were missing in several of the skeletons, the Russian scientists' assertion that Anastasia's remains rather than those of Maria were in the grave because none of the skeletons had a gap between the front teeth also appeared questionable to American scientists.