Scientists estimate Weight of World’s Most Famous Stegosaurus ‘Sophie’

According to scientists at a British museum, they have determined the weight of Sophie, which is among the world's most complete Stegosaurus skeletons. The scientists had used a new 3-D scanning technique to weigh Sophie.

Before putting Sophie on display at the Natural History Museum of London in 2014, researchers scanned all 360 bones of the Stegosaurus stenops' skeleton. According to reports, Sophie's skeleton is about 80% of the skeleton Sophie had in life. The reports stated that the researchers measured the bones by volume, which could be translated into mass.

The researchers of London's Natural History Museum said on Tuesday that Sophie was a young adult when it died about 150 million years ago. The creature weighed about 1.6 tons, while its body mass was nearly the same size as a small rhinoceros. According to the researchers, as the skeleton provided opportunity to cross-check two methods of weight estimation on the same skeleton, the total weight could be determined. The findings were published on Wednesday in Biology Letters.

While conducting research on Sophie, the research found that the Stegosaurus had been growing when it died. After that, they adjusted their calculations to determine the accurate weight. According to the researchers, to know about the way an animal lived, it is necessary to make accurate estimation of weight.

While talking to BBC News, Charlotte Brassey, Natural History Museum paleontologist and lead author, said, "If we want to estimate how fast an animal runs, you need body mass; if you want to say something about their metabolism, you need to know their body mass". Now, Brassey will work to add muscles to the digital scan of Sophie's skeleton. It will help researchers create simulations to know how the dinosaur had walked about 150 million years ago.