Ferns from the Chinle Formation (Upper Triassic) in the Fort Wingate area, New Mexico /
| Main Author: | |
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington :
U.S. Govt. Print Off,
1969.
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| Series: | Geological Survey professional paper ;
613-D. Geological Survey professional paper. Contributions to paleontology. |
| Subjects: |
| Physical Description: | iv, 52 pages, 11 unnumbered pages : illustrations, maps. ; 29 cm. |
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| Bibliography: | Bibliography: pages 47-50. |