Archaeocycas and Phasmatocycas - new genera of Permian cycads

Sergius H. Mamay

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USGS · 70162011

Archaeocycas and Phasmatocycas - new genera of Permian cycads

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.

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Sergius H. Mamay. 1973. Archaeocycas and Phasmatocycas - new genera of Permian cycads. https://pubs.usgs.gov/publication/70162011

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