An unusual skull discovered at a dig in southwestern China in 2010 has now been identified as that of a fierce, wolf-like animal that roamed the Earth more than 6 million years ago, weighing about 100 pounds, with large, sharp teeth and powerful jaws.

The newly discovered species is a prehistoric otter and an ancestor to the modern-day otter, but it was twice as big as its modern cousin, according to the study published in the Journal of Systematic Paleontology.

The discovery was part of a collaboration between the Yunnan Cultural Relics and Archaeological Institute in Yunnan Province, China and the Cleveland Museum of Natural History.

The extinct animal was named Siamogale Melilutra because it shares characteristics with modern otters and badgers, said Denise Su, curator of paleobotany and paleoecology at the Cleveland Museum of Natural History.

“This species has a mix of characteristics of both these animals in its skull and its teeth,” Su explained.

It’s one of the largest otters ever discovered, about “the size of a modern wolf,” she said.

The fossilized skull was found in Yunnan Province and included a cranium and lower jaw that is much larger than that of the modern-day otter.

About the Author

Keep Reading

Amy Stevens, a U.S. Navy veteran who founded Georgia Military Women, was inducted this month into the Georgia Military Veterans Hall of Fame. She recently visited the Atlanta History Center's exhibit, “Our War Too: Women in Service." (Arvin Temkar/AJC)

Credit: arvin.temkar@ajc.com

Featured

Passengers wait at a Delta check-in counter at Hartsfield-Jackson Atlanta International Airport on Friday, Nov. 7, 2025. It was the first day the Federal Aviation Administration cut flight capacity at airports during the government shutdown. (Arvin Temkar/AJC)

Credit: arvin.temkar@ajc.com