Ammonoids是什么意思

用法例句

Late Triassic and Early Jurassic Ammonoids from Eastern Himalayas;

东喜马拉雅地区晚三叠世—早侏罗世的菊石类

In the Shangrao and Qianshan area of Jiangxi, ammonite fossils are very abundant in thecoal measure strata of Shangrao Formation which is a contemporaneous heleropic deposit of the Maokou Formation This paper has described in detail a large quantity of ammonites collected from this area and has discussed preliminarily the evolution of some of them.

江西上饶和铅山地区茅口期异相沉积的上饶组煤系地层中,寿昌菊石科的菊石化石十分丰富。

With the suture line of ammonites as an example, the morphological feature in this paper is quantitatively described in view of fractal geometry.

以菊石为例，应用分形几何学的观点对菊石缝合线的形态进行了定量描述。

Ma jiashan , Northwest Chaohu City, Anhui Province, East China, where the Lower Triassic is well developed and composed of the alternations of mudrock and limestone deposited on a deep part of the Lower Yangtze carbonate ramp, containing rich ammonoid fossils.

由于地处低纬度下扬子碳酸盐缓坡台地较深水区 ,安徽巢湖地区的下三叠统由一系列泥、灰岩旋回层组成 ,并含有丰富的菊石化石。

Restricted sea ammonoid-bearing (siliceous) muddy deposit, IV.

海域内的菊石群专属性地发育于（硅）泥质沉积，强烈的土著性质显示其生活环境的局限性，不同于陆缘海斜坡同期的“南丹型”菊石和沉积。

THE DISCOVERY OF Ophiceras IN THE KAYITOU FORMATION IN EASTERN YUNNAN PROVINCE AND ITS SIGNIFICANCE;

Ophiceras(蛇菊石)在滇东卡以头组的发现及其意义

Because of the chaotic stratigraphic division of the Mid-Lower Jurassic dark-colored rock series in the Doima stratigraphic area, southern Qiangtang, the authors measured the Songke′er section in Sêwa during the petroleum geological survey in 2005 and systematically collected abundant ammonoid fossils with chronological significance.

针对南羌塘多玛地层分区中—下侏罗统深色岩系地层划分的混乱状况,2005年在进行羌塘盆地石油地质调查中实测了色哇地区松可尔剖面,并系统采集到大量有时代意义的菊石化石。