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Drought uncovers 113 million-year-old dinosaur footprints | DW News
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August 26, 2022
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August 26, 2022
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1:34Now PlayingA drought in the US state of Texas has unveiled the path of an ancient dinosaur. Footprints from the Acrocanthosaurus, a dinosaur that lived 113 million years ago, were revealed in a dried riverbed last week.
At that time, the region was located on the edge of a sea, meaning the dinosaur could have been going to wash its feet. Like the Tyrannosaurus Rex, the Acrocanthosaurus was an apex predator, weighing approximately four metric tons. However, the Acrocanthosaurus lived in the early Cretaceous period, 50 million years before its famous relative. Video footage shows the huge footprints imprinted into the bottom of the Paluxy River with three toes splaying out from the heel. The toes have sharp claws on the ends, specialized for gaining running traction and pinning prey animals to the ground.
Dinosaur footprints
Dinosaur footprints have been recorded for over 100 years in the area where the footprints were found in Dinosaur Valley State Park. Now 480 km (300 miles) from the Gulf of Mexico, the state park is a hotspot for tracking dinosaurs because of its coastal history. Calcium carbonate deposits from the shells of crustaceans that lived in the sea lands millions of years ago formed mud with the perfect consistency to preserve the tracks. Other dinosaur species with 100-million-year-old calcium carbonate footprints in the region include the Sauroposeidon proteles, giant herbivores that traveled in herds and left elephant-like tracks.
Droughts revealing more ancient relics
The tracks have been revealed because of extreme drought conditions in Texas. Far from being a dry spell, the conditions have been ongoing for 20 years, earning the classification "megadrought". A recent study found the region is experiencing its driest period in over 1,200 years. The climate crisis has been unearthing many ancient findings in recent years. Extreme drought in Iraq last year revealed the Bronze Age city of Zachiku, giving archaeologists a brief window to examine the site before it was flooded again.
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