Inland foraminifer fossils are considered as one of good indicators of marine facies.

内陆有孔虫化石群被一些学者视为是海侵或残留海指相化石。

The fossils may be a million years old.

这些化石可能有100万年。

According to the conodont and fusulinid fossils,their ages are determined to be Devonian-Permian.

所含化石确定地层形成时代为泥盆纪至二叠纪。

The geologist found many uncovered fossils in the valley.

在那山谷里,地质学家发现许多裸露化石。

Glauconite, detrital carbonate skeletal debris, marine fossils, and collophane are commonly present.

海绿石、碳酸盐骨骸碎屑、海相化石和胶磷矿普遍出现。

The Sciuridae from Shihuiba, a late Miocene hominoid locality at Lufeng, Yunnan Province are described.

记述云南禄丰晚新世石灰坝古猿地点发现松鼠科化石。

This is the first reliable trematothoracin sawfly discovered in China and in the Jurassic Period.

这是首次在我国发现可靠陷胸茎蜂化石，也是该亚科在侏罗纪首次报道。

They were searching for fossils.

他们在化石。

Paleolithic period intermediate stage important anthropolite, has Ma Baren, the Changyang man, Ding Cunren and so on.

旧石器时代期重要人类化石，有马坝人、长阳 人、丁村人等。

To avoid sampling bias, they restricted their analysis to one group of animals—the bivalve molluscs—that fossilise well.

为防止取样偏颇，他们将分析对象限制在一类化石记录保存完备动物——双壳类软体动物。

Experimental results showed that double coats of carbon and gold on the conductive coating of radiolarite should be used.

通过多次试验，认为放射虫化石表面导电处理应采用碳-金双层镀膜法。

The thorax and pleon bear a number of lateral appendages, including the gills, and the tail ends with a telson.

另一个古老特征是甲壳亚门动物分叉足，这样足在化石叶虫就已经有。

With the mixture tests design, the interaction mechanism of borate, chlorinated paraffin and zinc dialkyldi thiophosphate (ZDDP) additives is studied.

用混料试验设计方法,研究硼酸酯、氯化石蜡和二烷基二硫代磷酸锌(ZDDP)相互作用机理。

The total sedimentation was that rivers were branching and migrating frequently,and the sedimentary structures and fossil of ichnite were growing generally.

其总体沉积特征为:河道频繁分支与迁移,发育各种沉积构造及生物遗迹化石。

In the summer of 2003 we began to zero in on one microfossil type whose complex morphological characteristics particularly intrigued us.

2003年夏天，我们开始瞄准一种微化石类型，其复杂形态特徵特别引起我们兴趣。

Perhaps 20 or more hominids (not all of them our ancestors) fill the gap between Lucy the australopithecine and modern humans.

在阿法南猿（露西）与现代人之间，人科动物化石也许超过20种（他们不全是我们祖先）。

Based on the U-series dating of intercalated speleothem formations, the chronology of several hominid sites in southern China has been studied.

本文对采自云南呈贡龙潭山1号洞和广西土博咁前洞晚期智人遗址动物化石和洞穴次生碳酸岩样品进行铀系年代测定。

In the pale light of the tunnel, 30-foot fossil traces of lycopsid gleam slickly in the shale roof like alligator skins.

它们看起来像一棵棵巨型芦笋。在隧道内黯淡灯光下，页岩顶部30英尺长石松化石遗迹就像鳄鱼皮般发出柔滑光亮。

Abstract : Wollemia nobilis is a monotypic genus in Araucariaceae and one of the oldest living fossil plants in the earth.

摘要 ： 瓦勒迈松是南洋杉科单型属植物，是目前地球上最古老“活化石”植物之一。

In this paper the sample preparation techniques of radiolarite were discussed in order to get high quality secondary electron images in SEM.

讨论为获得放射虫化石高质量二次电子图像所采用试样制备方法。