It’s not every day you stumble across a dinosaur fossil. But three kids spotted one that could help science better understand the ancient king of beasts.
Brothers Jessin and Liam Fisher, and their cousin Kaiden Madsen, discovered a rare juvenile Tyrannosaurus rex fossil. They found it while roaming around North Dakota’s famed Hell Creek formation on July 31, 2022. The young dino they spotted had likely been between 13 and 15 years old when it died.
“It’s a kid’s dream. It’s a scientist’s dream, as well, to find significant parts of a Tyrannosaurus rex,” says David Wilcots. He’s a paleontologist who volunteers at the Academy of Natural Sciences. That’s at Drexel University in Philadelphia, Pa.
“I was completely speechless,” recalls Kaiden. He was nine when he and his cousins found the fossil.
The finding could help scientists understand how T. rex matured, says Tyler Lyson. He’s a paleontologist in Colorado at the Denver Museum of Nature and Science.
Liam, who was seven at the time, spotted the dino’s leg bone while hiking with Kaiden, Jessin and his dad. The family took pictures of the bone and sent them to Lyson. Lyson then organized an expedition to dig up the fossil in 2023, nearly a year later.
On the first day of the dig, Lyson and the boys found the dinosaur’s lower jawbone and a few teeth. Those teeth helped Lyson determine that they had uncovered a T. rex.
The team also unearthed the shin bone that the boys had first spotted. It measured 82 centimeters (32 inches). They knew it belonged to a “teen rex” because the shin on an adult T. rex is about 112 centimeters (44 inches). Along with the shin and jaw, the team has so far uncovered the skull and some tail bones.
But the work on this fossil is far from done. The expedition crew dug the remains out of the ground but kept them encased in rock. That keeps the fossils safe until museum staff can remove and preserve them.
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