from 190 million to 135 million years ago; dinosaurs; conifers

during jurassic period the oceanic area began to contract and converge increasingly, at last being closed. thus, the outline of continental margin was formed.

侏罗纪该洋区逐渐收缩、聚敛直至关闭，并奠定大陆边缘轮廓；

jurassic period has drawn widespread attention because of the legendary stories of dinosaur.

侏罗纪因为恐龙传奇性的故事引起人们的广泛注意。

photo gallery: jurassic period ghosts of an earlier age, an allosaurus and a stegosaurus brace for battle at the denver museum in colorado.

侏罗纪时代图片集。幽灵的较早的时期，古生异龙和剑龙振奋精神战斗在丹佛博物馆在科罗拉多州。

array studying early cretaceous period of late area jurassic period - is that a set of marine regression deposits on the world , the entirety.

研究区晚侏罗世-早白垩世的沉积整体上为一套海退沉积序列。

allosaurus was the top predatory dinosaur of the late jurassic period in north america.

异龙是最大的掠夺性恐龙的晚侏罗纪期间在北美地区。

photo gallery: jurassic period a dig in dry mesa, colorado, revealed these jurassic jewels: claws from a creature now extinct.

侏罗纪时代图片集。一个挖掘脚爪在干燥台地，科罗拉多州，揭示了这些侏罗系的宝石：脚爪从现在灭绝的动物。

it’s giving us an overview of the high arctic during part of the jurassic period for the very first time.

这差不多是相当于我们第一次对侏罗纪部分时期的高纬度北极地区有了大致了解。

photo gallery: jurassic period an allosaurus tramps through a mesozoic-era forest in this artist「s depiction.

侏罗纪时代图片集。一只古生异龙践踏通过一个中生代时期的森林在这方面艺术家的写照。

photo gallery: jurassic period sandstone monoliths, dubbed the temple of the sun and the temple of the moon, tower over the desert flats of utah」s capitol reef national park.

侏罗纪时代图片集。砂巖独块巨石 ，被称为庙宇的太阳和庙宇的月亮，塔在平坦的沙漠之上，犹他州的主神殿暗礁国家公园。

photo gallery: jurassic period clinging to life on an offshore crag, a tuatara looks little different from his jurassic relatives.

侏罗纪时代图片集。死抱着在海面上的峭壁，一只新西兰大蜥蜴看起来有点不同，从它的侏罗系的亲属。

because the main feature of tectonic movement is not strong fracturing after hydrocarbon formed, the oil reservoir of jurassic period is preserved.

鲁克沁构造带构造后期变革主要表现在构造幅度的增大，而未发生强烈的断裂作用，因此，前侏罗系油藏得以完好地保存。

since jurassic period , deposit built, structural fades , geochemistry characteristic of rocks ect. at gahai basin were all different from geosyncline period of early jurassic.

侏罗纪以来，尕海盆地在沉积建造、构造型相、巖石地球化学等方面都与前侏罗纪地槽期有异。

but one shouldnot — and does not — find modern human fossils embedded in strata fromthe jurassic period (144 million years ago).

但是我们不应该——也没有——在侏罗纪（1.44亿年以前）的地层中找到现代人的化石。

these formations were sculpted from sandstone deposited here in the jurassic period about 160 million years ago.

这些形成是雕刻由砂巖沉积在这里在侏罗纪时代约1.6亿年前。

therefore, it is established that the stratigraphic framework of jurassic period and early cretaceous.

早白垩世发育陆架边缘体系域。 在此基础上建立了测区侏罗纪—早白垩世地层格架。