Estimates of `` Sauroposeidon '' 's size are based on a comparison between the four `` Sauroposeidon '' vertebrae and the vertebrae of the HM SII specimen of `` Giraffatitan brancai '' , located in the Humboldt Museum in Berlin .
Estimates of `` Sauroposeidons size are based on a comparison between the four `` Sauroposeidon '' vertebrae and the vertebrae of the HM SII specimen of `` Giraffatitan '' in the Humboldt Museum in Berlin .