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首页> 外文期刊>Geological Journal >Biostratigraphy and palaeoecology of Middle and Late Ordovician conodonts from the Hulo and Yenwashan formations, western Zhejiang, south-eastern China
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Biostratigraphy and palaeoecology of Middle and Late Ordovician conodonts from the Hulo and Yenwashan formations, western Zhejiang, south-eastern China

机译：鄂伦斯西部浙江省洞穴和日阳山地层中期和晚期奥陶涅师的生物数据和古代生态学

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摘要

A total of 5,918 conodonts have been recovered from the upper Hulo Formation and the lower Yenwashan Formation in the Hengdu section, Jiangshan County, Zhejiang Province, south-eastern China, spanning the interval from the middle Darriwilian to the early Sandbian. Thirty-three species, belonging to 24 genera, have been identified with three biozones (i.e., the Dzikodus tablepointensis Biozone, the Histiodella kristinae Biozone, and the Pygodus anserinus Biozone) recognized in the region. Using multivariate analysis, the Periodon-Protopanderodus biofacies is recorded from the upper Hulo Formation, and the Periodon-Pygodus biofacies and the Protopanderodus-Baltoniodus biofacies are recorded from the lower Yenwashan Formation. The Periodon-Protopanderodus biofacies and the Periodon-Pygodus biofacies represent a deep-water environment, such as the margin of the platform and/or slope environment, deeper than that of the Protopanderodus-Baltoniodus biofacies.
机译：浙江省东南部江山县恒水段中，总共5,918株康多尔已经从上层孔孔形成和较低的日元形成，跨越了中间达里威利安到早期桑太的区间。 属于24属的三十三种物种已被该区域识别的三种生物区域（即Dzikodus Tablepopingess Biozone，组织kristinae Biozone和Pygodus Anserinus Biozone）鉴定。 使用多变量分析，从上涌山形成的阶下涌孔形成中记录了季肾上腺素原生物酸盐生物舒膏，从而从较低的日元形成中记录了龄糖生物腺和生物血清生物舒膏。 阶段 - 原生植物生物舒膏和龄丸 - PyGodus Biofacies代表了深水环境，例如平台和/或坡度环境的边缘，比ProTopanderodus-Baltoniodus Biofacies更深。

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