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含䗴生物碎屑灰岩

2019-03-18 | 浏览次数:7374次 | 字体【 关闭
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产地:内蒙古正蓝旗上都镇白音高勒石灰岩矿区
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名  称:含䗴生物碎屑灰岩

形成时代:二叠纪(距今2.52~2.99亿年)

层  位:下-中二叠统三面井组。䗴为原生动物门有孔虫亚纲的一个已灭绝的目,全为海生,大多数营浅海底栖生活,借助伪足运动和捕食,少数可能为浮游生活。䗴演化迅速、分布广泛,是石炭纪-二叠纪的重要标准化石之一,对研究古地理、古生物、古环境具有重要意义。

采集地点:内蒙古正蓝旗上都镇白音高勒石灰岩矿区


Name:Fusulinid-Bearing Bioclastic Limestone

Age:Permian(252~299 Ma)

Stratigraphy:The lower Permian Sanmian Formation. Fusulinid was a extinct marine species of Foraminifero from Protozoa, lived mostly in shallow sea bottom. They used their disguised feet for moving and prey, some might as plankton. Fusulinid developed fast and was widely found. It is one of the stereotype fossils of Carboniferous and Permian, which is of great significance for research on paleogeography, paleontology and paleoenvironment.

Sample site:Baiyingaole limestone quarry, Shangdu, Zhenglanqi, Inner Mongolia.