The renowned Guizhousaurus fossil fauna was found in Luyin Village of Ding Xiao Town in Xingyi City, Guizhou Province. Xingyi City is known as ‘the Land of Dragons’ because Guizhousaurus fossils are widespread, and new species have been found. Guizhousaurus are marine reptiles of the Sauropterygia order, Pachypleurosauridae genera. Their bones are black and three-dimensional. The longest Guizhousaurus fossil is 1.55 m long, while the smallest is only a few centimetres long. They all have clear skeletons and hence look alive. Amazingly, larvae were also found inside their bodies, which provide strong evidence that Guizhousaurus were viviparous.