您要查找的是不是:
- planorbis planorbis 扁卷螺
- The Psiloceras calliphyllum assemblage is most likely equivalent to the CALLIPHYLLUM Zone of North Alps and the PLANORBIS Subzone of Northwest European Province. Psiloceras calliphyllum组合能够和北阿尔卑斯地区CALLIPHYLLUM菊石带比较, 证明北阿尔卑斯地区三叠系和侏罗系之间存在地层缺失。
- Planorbis [医] 扁卷螺属
- Planorbis caenosus [医] 扁卷螺
- Planorbis corneus 角扁螺