Archaeocycas and Phasmatocycas - new genera of Permian cycads
The generic names Archaeocycas and Phasmatocycas are introduced for two previously announced but unnamed new genera of Early Permian plants; these taxa are regarded as early stages in the cycadean lineage. The names arc formalized with diagnoses, illustrations, and type designations.
Citation Information
Publication Year | 1973 |
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Title | Archaeocycas and Phasmatocycas - new genera of Permian cycads |
Authors | Sergius H. Mamay |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Journal of Research of the U.S. Geological Survey |
Index ID | 70162011 |
Record Source | USGS Publications Warehouse |