Giant reptiles shared a single toilet 240 million years ago, and scientists have the evidence to prove it.
The world’s oldest known public toilet was used by a rhino-like megaherbivore called the Dinodontosaurus, according to findings published by Scientific Reports. The creatures grew up to eight feet long and were found in the La Rioja province of Argentina.
“There is no doubt who the culprit was,” Dr. Lucas Fiorelli of Crilar-Conicet told BBC News. Dr. Fiorelli discovered the “evidence” left behind: giant dung heaps that indicate the reptiles’ diet, as well as diseases they may have carried.
“If you leave a huge pile, you are saying: ‘Hey! We are a big herd. Watch out!’” he said, noting that communal latrines also prevented parasites from infesting the food supply.
The prehistoric excrement was spread across patches 900 square meters and preserved by “like Pompeii” by volcanic ash, BBC reported.