化石

Fossil evidence indicates that the ancestors of modern camels evolved in North America during the Palaeogene period, and later spread to most parts of Asia.

化石证据表明，现代骆驼的祖先进化在北美在古期间，后来蔓延到亚洲大部分地区。

Genus and 40 species of Jurassic Pteriomorphia and Isofilibranchia from Northern Tibet were described in present paper. The data of genus and species of Jurassic Pteriomorphia and Isofilibranchia from Northern Tibet, Southern Tibet, and India were studied with cluster analysis respectively. The Jurassic palaeobiogeographic and palaeogeographic relations of these three regions were also discussed on the basis of the result of cluster analysis and analysis of the controlling factors of bivalve distribution.

本文记述了藏北侏罗纪双壳类Pteriomorphia和lsofilibranchia化石22属40种，对藏北、藏南及印度侏罗纪Pteriomorphia和Isofilibranchia的属和种分别进行了统计和聚类分析，以此探讨这三个地区之间的古生物地理关系，并进一步分析了控制侏罗纪双壳类分布的因素及讨论了藏北、藏南与印度这三大地块的古地理位置。

University of California Los Angeles paleobiologist Bill Schopf studies the oldest fossils on earth.

美国加州大学洛杉矶分校的古生物学家比尔肖普夫研究了地球上最古老的化石。

University of California , Los Angeles , paleobiologist , Bill Schopf , studies the oldest fossils on earth.

洛杉矶加利弗尼亚大学的古生物学家比尔肖普夫研究了地球上最古老的化石。

Dawson said kha-nyu is not exactly the same animal as its ancestor, but it exemplifies the evo-lutionary uncertainties that prompted University of Chicago paleobiologist David Jablonski in the 1980s to come up with the concept of the Lazarus effect as a cautionary tool in evaluating the fossil record.

虽然我们习惯称此类动物为「活化石」，但其实不论是腔棘鱼或老挝岩鼠，都和祖先不一样，就如同所有活在世上的生物，经历长期演化，只是演化的过程在化石记录中付之阙如，一度被误以为绝种而已。

That means paleobotanical input—the consideration of plant fossils—could play an important role in future eco-restorations.

这就意味着古生物植物的信息获取---对植物化石的研究——在将来的生态修复中能起到非常重要的作用。

As the extremely low growth rate and stable forming environment,Fe-Mn crust is the ideal fossil of Paleoceanography and global change.

由于铁锰结壳极低的生长速率和较稳定的形成环境，使它成为古海洋学和全球变化研究的理想&化石&。

This paper deals with the use of correspondence analysis as an aid in paleoclimatic reconstruction based on modern and fossil pollen data.

利用现代和化石孢粉资料，借助于对应分析方法，进行了古气候定量重建尝试。

Fossil renovation is the most important job ahead of paleontologic studies.

化石修理是古生物研究的一个重要环节。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐