New progress in the study of the Lower Cretaceous of the Guyang area,Inner Mongolia
New progress in the study of the Lower Cretaceous of the Guyang area,Inner Mongolia
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发表时间：
2000
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通讯作者：
Xin-yuan Hou
中科院分区：
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作者：
Xin-yuan Hou
在内蒙古固阳县以东下石好地区1∶5万区域调查中，首次收集到大量已确定的下白垩统固阳组的足类、腹足类、东足类、蕨类和胚胎类化石。根据化石资料，结合沉积组合特征，对原固阳组进行修正，更名为下白垩统李三沟组。
During 1∶50 000 regional survey in the Xiashihao area east of Guyang county,Inner Mongolia,the authors first collected abundant fossils of pelecypods,gastropods,ostrocods,charophytes and embryophytes in the Lower Cretaceous Guyang Formation determined previously.According to the fossils combined with the features of sediment associations,the original Guyang Formation is revised and renamed the Lower Cretaceous Lisangou Formation.