One giant step: first known T rex footprints found in North Dakota
Summary
Scientists found the first known series of adult Tyrannosaurus rex footprints in North Dakota. The footprints are about 66.5 million years old and show how the T. rex moved through that area.Key Facts
- The footprints were found in the Hell Creek Formation, a famous dinosaur fossil area.
- The trackway is 23 feet long and includes four three-toed footprints.
- Each footprint is about 3 feet long with a stride of about 13 feet.
- Researchers used 3D scanning to document the footprints and estimate the T. rex walked at around 3.5 to 4.5 mph.
- The prints are the first known set of adult T. rex footprints ever found, while only juvenile or related species footprints were known earlier.
- The T. rex lived about 66 to 68 million years ago during the late Cretaceous period.
- Some footprints will be moved by helicopter to the Denver Museum of Nature and Science.
- A Colorado teacher who helped find the site co-authored the scientific paper about this discovery.
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