A group of researchers reported that in Argentinean Patagonia discovered a giant fossil of fish age 70 million years, which lived among dinosaurs. Previously fossilized remains of this extinct species similar to that found in Argentina were discovered in the US state of Kansas and sold at auction in 2010. The discovery was published in the Australian scientific journal of paleontology Alcheringa.
Argentinean paleontologists have discovered the remains of predatory fish longer than 6 m, the researchers said in a statement. Fish swam in the Patagonian seas at the end of the Cretaceous when the temperature there was much more moderate than now.
Fossils of this carnivore with sharp teeth and a frightening appearance were found near Lake Colue-Huapial, about 1,400 km south of the capital Buenos Aires.
This fossil belonged to the genus Xiphactinus, or Xyphactin. This species of giant predatory ray-fin fish from an extinct order of ichthyodectiform. They lived during the Upper Cretaceous era.
The predator’s body was slim and ended with a huge head with large jaws and teeth, as sharp as needles, several centimeters long, the researchers say.
Examples of this species were found in other parts of the world, some of which even retained the contents of the stomach. Previously, Xiphactinus was only found in the Northern Hemisphere, although one sample was recently discovered in Venezuela.
Patagonia is currently one of the most important reservoirs of dinosaur fossils and prehistoric species.