244-million-year-old marine reptile with the world's longest tail discovered in Yunnan(1/4)

A fossil of a marine reptile called Honghesaurus dating back 244 million years is on display, May 9, 2022. (Photo: China News Service/Sun Zifa)

Honghesaurus, a new species of Pachypleurosauroidae, has the longest tail known in the world and the earliest in China.

Line-drawing of the whole Honghesaurus. (Photo provided to China News Service)

Line-drawing of girdles, limbs and vertebrae of Honghesaurus. (Photo provided to China News Service)

Skull and mandible of Honghesaurus. (Photo provided to China News Service)