化石动物

One huge problem with finding such animals is that they did not have hard skeletons that would mineralize and become fossils.

要寻找这样的动物，有一个很大的问题是，牠们没有坚硬的骨骼可以矿化并成为化石。

Any of numerous extinct colonial marine animals chiefly of the orders Dendroidea and Graptoloidea of the late Cambrian to the early Mississippian periods, whose fossil remains are often used to date the rocks of the ''.

笔石动物许多已绝灭的殖民地海洋生物中的任何一种，主要为寒武纪晚期到密西西比纪早期的树形笔石目及笔石纲的生物，其化石残存物常用于确定志留纪和奥陶纪岩石的年代

This paper reviews recent advances in myriapod phylogenetics and presents a preliminary phylochronologic scheme of the evolutionary events in early my-riapods with the following observations: 1） Myriapoda might have diverged from its sister group during late Cambrian or earlier.

精确的多足动物亚门谱系发生关系以及谱系年代学细节还有待于进一步综合系统学、多基因和多重化石参照点的合理分析加以深入和完善，进而为早期陆地复杂生态系统的建立提供新的证据。

Naturalgas formed from thefossilized remains of plants and animals-a processthat took millions ofyears.

天然气形成的化石遗迹的植物和动物，一个过程，在数百万年之久。

The fossil snake bones were found in an open-pit coal mine , along with its prey, which included turtles and crocodiles.

蛇的骨骼化石在一个露天煤矿里被发现，一起发现的有它捕食的动物，包括海龟和鳄鱼。

Ornithologist John Gould told him the birds he had studied on the Galapagos Islands were perfectly adapted to the island environment. Palaeontologist Richard Owen told him the fossils he had found were of extinct relatives of South American animals living today.

鸟类学家约翰·古尔德告诉达尔文说，他在加拉帕戈斯群岛研究的鸟类与该岛环境完全契合；古生物学家理查德·欧文则对他说，他发现的化石是现今生活在南美洲的动物业已灭绝的亲属。

The Institute of Vertebrate Paleontology and Paleoanthropology, part of the Academia Sinica in Beijing, houses the fossilized teeth of the dinosaur Beipiaosaurus.

位于北京的中国古脊椎动物与古人类研究所，隶属于中科院，收藏有恐龙北票龙的牙齿化石。

Qingyang found an important precious fossils, Shocked by this strange discovery of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences research fellow human Dong, day and night from Beijing arrived in Qingyang and hardships, arrived at the three Shilipu.

庆阳发现了重要珍贵化石，惊闻这一奇特的发现，中科院古脊椎动物与古人类研究所研究员董枝明，日夜兼程从北京赶赴庆阳，来到了三十里铺。

In 2000 Xu Xing and his colleague discovered that certain dinosaurs had the features of animals perching on trees.

中国科学院古脊椎动物与人类研究所徐星、周中和博士及其同事于辽宁省的恐龙化石材料中发现，鸟类的祖先恐龙长着4个翅膀，很可能具有滑翔能力。

More phyla in the very, very beginning, where we found the first fossils of

早以前，就是在第一次发现动物生命的化石时，它们就已经存在了。

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