Ferns from the Chinle Formation (Upper Triassic) in the Fort Wingate area, New Mexico /
| Main Author: | |
|---|---|
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print Off,
1969.
|
| Series: | Geological Survey professional paper ;
613-D. Geological Survey professional paper. Contributions to paleontology. |
| Subjects: |
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