| geocraft.com | |
| 网站标题： | Plant Fossils of West Virginia |
| 网站简介： | Plant Fossils of West Virginia |
| 关键字： | Monte Hieb fossils West Virginia coal geology mining Geocraft paleobotany paleontology articulates lycopod seed fern alethopteris alloiopteris annularia botany Carboniferous Pennsylva |
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