化石

Is found to have a close relationship with the living Delesseria according to detailed morphological study between the fossil and modern Delesseria. These new findings show that the Chengjiang Biota is high in species diversity of fossil algae and might offer new evidence for a better understanding of the Cambrian explosive biological evolution and its paleoenvironment.

Nov。。通过比较形态学研究，探讨了该宏观化石藻类的分类归属与亲缘关系，进一步丰富了澄江生物群生物物种多样性的认识，并为研究早寒武世生物演化及其古环境提供了新的化石证据。

Detailed biostratigraphic study reveals that the sequence could contain 3 Ostracoda assemblages, 3 Lamellibranchiata and Gastropoda assemblages and 8 sporopollen assemblages, whose ages are discussed on the basis of radioactive dating.

通过详细的生物地层学研究，共划分出 3个介形虫化石组合带、3个瓣鳃类及腹足类化石组合带和 8个孢粉组合带，结合各组同位素年龄数据，对其形成时代进行了探讨。

In condensed sections, fossils and organic, phosphatic and glauconitic material tend to be concentrated compared with rapidly deposited sections that contain few fossils.

在凝缩剖面中，化石和有机物磷酸盐和海绿石质物质相对于几乎不含化石的快速沉积剖面而言，都趋向于被凝缩。

The very fact that Guiyu can be identified as a sarcopterygian provides further and arguably clinching evidence that a whole series of major branching events within the gnathostome crown group must have taken place well before the end of the Silurian.

对于硬骨鱼类来说，尽管其最确切的化石证据来自早泥盆世，属于硬骨鱼类冠群，但是在晚志留世（距今约4.16-4.23亿年）地层已经发现了不太肯定的硬骨鱼类化石碎片。

In the Goran language of Chad, it was found in beds where shifting sand dunes have exposed thousands of fossils of crocodiles, elephants, and other creatures.

在发现该化石的地层处的流动沙丘中，已经出土了数以千计的鳄鱼、大象和其他物种的化石。

Red Coral Shell Fossil is one of them, it is the fossil of halobios due to the movements of earth crust .

红珊贝化石》就是其中一种，因地壳变迁而形成的海洋生物化石。

Europe, the vast majority of classic Hipparion fossil fossil origin has been almost completely excavated, most of the poor outcrop.

欧洲绝大多数三趾马化石经典产地的化石已经发掘殆尽，露头大多很差。

Giraffe fossils in the province have repeatedly found that as early as age 20 in the 20th century, the territory of Longdongqing yang xian Sang by French zhihua explore a large number of giraffes, and hyenas Hipparion fossils (existing Tianjin Museum of Natural History).

长颈鹿化石在我省有过多次发现，如早在20世纪20年代，陇东庆阳县境内就由法国人桑志华发掘出大批长颈鹿、三趾马和鬣狗等化石。

Then; we compare the calibrated fossil shell results with the datings of the soil humin fraction and concentrated pollen in order to evaluate the reliability of the dating terrestrial mollusks fossil shells.

运用现生蜗牛壳体的AMS14C测定来校正化石蜗牛的年龄，结合剖面中孢粉浓缩物、土壤有机质的AMS14C年代学对比研究，发现蜗牛化石壳体的文石可以提供较可靠的年代数据，为14C测年的可靠性研究提供了一种可能的途径。

In organic lamina, the content of organic carbon exceeds 5% and algae fossils and ichthyolite are abundant.

其中有机质纹层中的有机碳含量在5%以上，富含藻类化石及鱼化石等；钙质纹层主要由方解石组成，呈灰白色。

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