Archaeologists have found the remains of an extinct prehistoric dolphin in South Carolina, according to another issue of Current Biology.
According to scientists, the dolphin Ankylorhiza tiedemani lived about 25 million years ago in the Oligocene era, and its length reached 15 m.
The anatomy of the skeleton suggests that the dolphin was a predator, had the ability to echolocation, and took the top of the food chain in the marine ecosystem.
Specialists also found that the animal has several similarities with modern whales, although it is not directly related to this group of mammals. The authors of the study believe that these animals developed independently of each other during the so-called parallel evolution.
“Whales and dolphins have a complex and long evolutionary history, and you may not get the full picture by exploring modern species. <...> Fossils like Ankylorhiza help shed light on this long winding path of evolution,” says Robert Bossenecker, one of the authors.
In May, the press office of Plymouth University in the UK reported the discovery of squid and fish remains from the Jurassic period.