“中生代”的英语？

哺乳类起源于中生代宛若原始的爬虫类.Mammals arose from a fairly primitive reptile in the Mesozoic era.丹巴地区自中生代以来经历了多期的变形 、 变质和岩浆作用.Danba area has undergone multiperiod deformation, metamorphism and magmatism since Mesozoic time.热储由中生代燕山期花...