According to the conodont and fusulinid fossils,their ages are determined to be Devonian-Permian.

根据所含化石确定地层形成时代泥盆至二。

Permian bioclastic limestone and bioherm are the most favorable reservoirs.

二系生屑灰岩和生物礁最有利储层。

Along with the similarly large dinocephalia, the bradysaurs constituted the herbivorous megafauna of the late Middle Permian Period.

缓龙与类似小恐��兽类都是中二草食性巨型土壤生物。

At the end of the Permian period the earth's landmasses were configured into one supercontinent, Pangea, and a superocean, Panthalassa.

二末期，地球上陆地合并成一块超级洲，叫作陆，以及一个超级海，叫作原始洋。

The secondary dolomite and paleokarst of the Lower Permian Series in Sichuan Basin is one of the important atectonic reserviors in the basin.

四川盆地下二统中次生白云岩及岩溶是下二统主要非构造圈闭储层之一。