阿拉斯菊石群的新材料

详细信息

New information on Araxoceratidae Ruzhencev

摘要: 描述的菊石产自江西宜春、安福两地,计有1新科、5新属、8新种和一个未定种。根据花桥菊石科(新科)和宜春菊石属(新属),阐述了菊石的演化,并对国际地层对比作了探讨。
- 晚二叠世早期 /
- 菊石演化 /
- 地区地层对比
Abstract: The described ammonitida fossils are collected from Yichun and Anfu places,being relation to 1 new family,5 new genus,8 new species and 1 undefinited species.According to Huaqiaoceratidae fam.nov.and Yichunoceras gen.nov.the evolut ion of ammonitida is described,and the international stratigraphic correlation i s discussed.
- early stage of Late Permian /
- evolution of ammonit ida /
- regional stratigraphic correlation