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Sue (FMNH PR 2081)

Named After...

Sue Hendrickson

Size

43 feet long, 13 feet tall

Weight

Around 6.5 short tons

Age

Around 28 human years of age

Fossil Range

Around 67-65.5 million years old

Sue

Skeleton

FMNH PR 2081 or Sue (after the name of her discoverer, Sue Hendrickson) is one of the largest specimens of Tyrannosaurus rex. It is believed that Sue is a female T. rex, due to her heavy skeleton. FMNH PR 2081 was the first aged skeleton of Tyrannosaurus rex and was around 28 years old. This disproved the theory that T. rex lived as long as elephants (60 years of age) just because of their large size. Sue was discovered in 1990 in Black Hills, South Dakota and was sold to the Field Museum, Chicago, Illinois in 1997 for 7.6 million US dollars. The highest amount paid for any dinosaur fossil.

Parasitic InfectionEdit

Tyrannosaurus infection

An illustration of Tyrannosaurus rex with Trichomonas gallinae

What were believed to be bite marks on the back of her skull are now known to be parasitic infections. Subsequent study showed that Sue may of been infected from a 65 million-year-old form of Trichomonas. Today this infects birds and humans but since birds were ancient cousins of dinosaurs, could it of been possible that Trichomonas infected T. rex?