Reef geological period , in the triassic , before the age of many reef species ; middle triassic only after six fire coral , basically , it is referred to as reefs .
In the late permian and triassic , the basin underwent once again a large-scale transgression , and the depositional environment was shelf sea with delta locally .
晚二叠世-三叠纪盆地又经历了一次大的海侵,浅海陆棚环境,局部海陆过渡三角洲相。
Having warm blood and a high metabolic rate may have contributed to the evolutionary success dinosaurs enjoyed for hundreds of millions of years throughout the triassic , jurassic and cretaceous periods .
More than 15 % of jurassic and cretaceous ichthyosaurs had suffered the bends before they died , but not a single triassic specimen showed evidence of that sort of injury .
侏罗纪和白垩纪鱼龙生前患有减压病的比例超过15%,但完全没有三叠纪鱼龙罹患该症的证据。
A huge slab of the triassic intrusion of the palisade diabase ( also known as tap rock ) broke off these prominent cliffs ( over 300 ft or 90 m high in places ) several days before this picture was snapped .