Paleozoic origin of the cycads
January 1, 1976
No abstract available.
Citation Information
| Publication Year | 1976 |
|---|---|
| Title | Paleozoic origin of the cycads |
| DOI | 10.3133/pp934 |
| Authors | Sergius Harry Mamay |
| Publication Type | Report |
| Publication Subtype | USGS Numbered Series |
| Series Title | Professional Paper |
| Series Number | 934 |
| Index ID | pp934 |
| Record Source | USGS Publications Warehouse |