[关键词]
[摘要]
河南省西南部西峡盆地以含有大量的恐龙蛋化石而著称。以往研究限于化石证据不足,使得对含恐龙蛋地层时代认识上存在较大分歧。本次研究在西峡盆地含恐龙蛋地层中首次发现了无脊椎动物化石,如双壳类、叶肢介、腹足类和介形类。从而确定含化石层位的时代为晚白垩世中期。
[Key word]
[Abstract]
The Cretaceous red beds in the Xixia Basin of southwestern Henan contain abundant dinosaurian eggs. But their age determination has been hampered by the limited fossil evidence. Now we have recovered invertebrate fossils, such as bivalves, conchostracans, gastropods and ostracodes, in the dinosaurian egg-bearing strata. This discovery indicates the fossil bearing horizon may be middle Late Cretaceous in age.
[中图分类号]
Q915.21
[基金项目]
河南省探矿权采矿权地质遗迹保护项目 , 国家自然科学基金 , 国家重点基础研究发展计划(973计划)
