MINI-Hyphalosaurus Aquatic reptiles of the Early Cretaceous from China Dimensions: 13.5cm Animal size: 11cm Hyphalosaurus - "lizard hiding under water", a Chinese aquatic lizard creature, is an aquatic reptile that lived in the Early Cretaceous. It belongs to the Hyphalosauridae family and is one of the representative organisms of the Jehol Biota. Friends who like to collect aquatic reptile fossils should not miss it.