The parts preserved in these specimens are shaded.

Scale, 10 feet=1 inch.] BRONTOSAURUS.
The following description of the Brontosaurus skeleton in the American Museum was first published in the American Museum Journal of April, 1905:[11] "The Brontosaurus skeleton, the principal feature of the hall, is sixty-six feet eight inches long.

(The weight of the animal when alive is estimated by W.K.Gregory at 38 tons).

About one-third of the skeleton including the skull is restored in plaster modelled or cast from other incomplete skeletons.

The remaining two-thirds belong to one individual, except for a part of the tail, one shoulder-blade and one hind limb, supplied from another skeleton of the same species.
"The skeleton was discovered by Mr.Walter Granger of the Museum expedition of 1898, about nine miles north of Medicine Bow, Wyoming.
It took the whole of the succeeding summer to extract it from the rock, pack it, and ship it to the Museum.