白垩纪

This website is dedicated to Cretaceous fossils from the USA and around the world: ammonoids, dinosaurs, nautiloids, belemnites, plesiosaurs, etc. CretaceousFossils.com is designed to be a dinosaur age fossil identification site.

该网站致力于美国及世界各地白垩纪化石资料收集及相关研究，有菊石、恐龙、鹦鹉螺目软体动物、箭石、蛇颈龙等化石介绍。

Massive herbivorous bipedal dinosaur with a long heavy tail; common in Europe and North Africa; early Cretaceous.

身体大而重的食草恐龙，尾巴又长又重；常见于欧洲和北部非洲；生活在白垩纪早期。

Distant effect of Jurassic collisions of Qiangtang terrane,Lasa terrane and Paleo\|Pacific land onto the Eurasian land made East Qinling\|Dabie Mountains in a compressional circumstance for a long time,and suppressed its orogenic extension;whereas,Cretaceous late\|collisional extension and appearance of West Pacific trench\|arc\|basin system relieved East Qinling\|Dabie Mountains of external compression,instantly result in violent orogenic lithosphere delamination\|extension and depressurized\|calefactive melting,and consequently,led to the formation of large scale Early Cretaceous granitoids and intermediate\|acidic volcanic rocks.

羌塘地体、拉萨地体和西太平洋古陆在侏罗纪与欧亚大陆拼贴碰撞的远距离效应使东秦岭-大别造山带长期处于挤压环境，伸展作用被抑制；白垩纪的碰撞晚期伸展和西太平洋沟弧盆体系的远距离效应使东秦岭-大别地区的外部挤压消失，导致造山带岩石圈迅速强烈拆沉伸展和减压增温熔融，从而形成大规模早白垩世花岗岩类和中酸性火山岩。

Qingyang pterosaur found before only found in the Junggar pterosaur fossils of the Cretaceous pterosaur is even; and Qingyang pterosaur pterosaur Junggar than earlier, more primitive Chiroptera late Jurassic pterosaur dragon type.

庆阳翼龙发现之前，仅仅在新疆准噶尔发现过翼龙化石，尚且是白垩纪的翼龙；而庆阳翼龙是比准噶尔翼龙更早、更原始的晚侏罗纪翼手龙类翼龙。

It not only ends the dispution about the time of the Mt. Yandangshan World Geopark volcanic rocks, but also ofifers chronologic limits for both stratigraphic divisions of Cretaceous volcanic rocks in eastern Zhejiang and the Yanshanian Movement in Southeast China.

这不仅解决了有关雁荡山世界地质公园火山岩形成时代的争议，也为解决浙江东部白垩纪火山岩地层划分对比提供了良好的年龄约束，同时也为探索中国东南部燕山运动提供了年龄约束。

A row of swordlike fangs gave the Enchodus its nickname: saber-toothed herring.Copyright MMVII NGHT, Inc.

矛齿鱼，这种有着一排像剑一样锋利的牙齿，它们是白垩纪鱼类中异常凶猛的一种，它们有个绰号叫&剑齿鲱&。

Mosasaurs breathed air and were powerful swimmers that were well-adapted to living in the warm, shallow epicontinental seas prevalent during the Late Cretaceous Period.

默兹河蜥必须呼唤空气生存，白垩纪后期浅浅的陆缘海随处可见，默兹河蜥已经很好地适应了这种环境，成为十分强劲的游泳能手。

New reliable UPb age dates of the extensive Cretaceous igneous rocks in the eastern Himalayas suggest that these rocks were emplaced at about 132 Ma, and may represent the erosional and/or deformational remnants of the newly identified ComeiBunbury large igneous province.

新的可靠的锆石UPb年龄指示喜马拉雅带东部措美地区大面积出露的白垩纪火成岩侵位于132 Ma左右，代表了新近在藏南和澳大利亚南西部识别出的经历了强烈变形和深位侵蚀的ComeiBunbury大火成岩省的残余。

There are also a number of fossil genera, leptosporangiate ferns dating back to the Cretaceous era, eusporangiate ferns to the Devonian.

有化石证据表明，薄囊蕨从白垩纪时就有，而厚囊蕨可追溯到泥盆纪。

Hypsilophodon,Early Cretaceous,1.5-2.3m

棱齿龙，白垩纪早期，体长1.5-2.3米。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。