Archaeocycas and Phasmatocycas - new genera of Permian cycads
Journal of Research of the U.S. Geological Survey
By: Sergius H. Mamay
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Abstract
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.
Suggested Citation
Mamay, S.H., 1973, Archaeocycas and Phasmatocycas - new genera of Permian cycads: Journal of Research of the U.S. Geological Survey, v. 1, no. 6, p. 687-689.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Archaeocycas and Phasmatocycas - new genera of Permian cycads |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 1 |
| Issue | 6 |
| Year Published | 1973 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Description | 3 p. |
| First page | 687 |
| Last page | 689 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |