supported by the National Basic Research Program of China(Grant No.2011CB403003);the College Innovation Research Program of Gansu Province(Grant No.2020B320);the College Innovation Foundation of Gansu Province(Grant No.S202013933013)。
Global climate during the Jurassic has been commonly described as a uniform greenhouse climate for a long time.However,the climate scenario of a cool episode during the Callovian-Oxfordian transition following by a wa...