Paleontologists have uncovered a remarkably well-preserved dinosaur trackway near Ouray, Colorado, potentially revealing evidence of a limping dinosaur from over 150 million years ago. The discovery, announced November 25 by the University of Queensland (UQ), consists of approximately 130 footprints stretching over 310 feet.
A Rare Glimpse into Dinosaur Life
The trackway is believed to have been made by a four-legged, long-necked dinosaur belonging to the sauropod clade. According to UQ paleontologist Anthony Romilio, long, looping trackways like this one are “very rare,” with only one other known example currently existing – the other located in China, which has since been destroyed by a rockslide. This makes the Colorado trackway uniquely valuable to researchers.
The footprints themselves offer clues about the dinosaur’s gait. Romilio explained that species like Camarasaurus tended to leave deeper handprints, while Diplodocus left deeper footprints, due to differences in weight distribution. The looping pattern of the trackway suggests the dinosaur may have been deliberately altering its course, potentially to avoid an obstacle or due to an injury.
“As paleontologists, we work carefully within the bounds of the evidence, and in this case the information doesn’t yet indicate a confrontation or interaction with another dinosaur,” Romilio stated. “That said, the looping path is unusual…the idea that the trackmaker might have been avoiding something is certainly a compelling speculative interpretation.”
Researchers are utilizing digital mapping tools to analyze the trackway with unprecedented precision, assessing differences in step length between the left and right legs to further investigate the possibility of a limp or other physical impairment.
What’s Next?
Further analysis of the trackway could reveal more definitive evidence about the dinosaur’s condition and behavior. Scientists may attempt to determine the species of dinosaur that created the footprints based on the size and shape of the impressions. It’s also possible that future discoveries in the area could shed light on the environment the dinosaur inhabited and whether other dinosaurs were present at the time.
Frequently Asked Questions
What is a trackway?
A trackway is a series of fossilized footprints left behind by an animal as it moved across a surface. They provide valuable insights into the animal’s locomotion, behavior, and size.
How old are the footprints?
The footprints are over 150 million years old, dating back to the Jurassic period.
Why is this trackway considered rare?
Long, looping trackways are very uncommon. This Colorado trackway is particularly significant because the only other known example, located in China, has been destroyed.
What questions does this discovery raise for you about the lives of dinosaurs?
Worth a look