Jurassic-Cretaceous Herpetofaunas from the Jehol Associated Strata in NE China:Evolutionary and Ecological Implications

Jurassic - Cretaceous herpetofaunas have recently been recovered from tuff-interbedded lacustrine strata in northeastern (NE) China. Most of them are from the Early

Jurassic-Cretaceous herpetofaunas have recently been recovered from tuff-interbedded lacustrine strata in northeastern （NE） China. Most of them are from the Early Cretaceous Jehol Group （131-120 Ma）, which has yielded a diverse and important fossil assemblage including insects, plants, fishes and tetrapods. Work on the Jehol Biota has been ongoing for more than a century,