<?xml version='1.0' encoding='utf-8'?>
<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Sergius H. Mamay</dc:creator>
  <dc:date>1973</dc:date>
  <dc:description>&lt;p&gt;The generic names &lt;i&gt;Archaeocycas&lt;/i&gt; and&lt;i&gt; Phasmatocycas&lt;/i&gt; are&amp;nbsp;introduced for two previously announced but unnamed new genera of&amp;nbsp;Early Permian plants; these taxa are regarded as early stages in the&amp;nbsp;cycadean lineage. The names arc formalized with diagnoses, illustrations,&amp;nbsp;and type designations.&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:language>en</dc:language>
  <dc:publisher>U.S. Geological Survey</dc:publisher>
  <dc:title>Archaeocycas and Phasmatocycas - new genera of Permian cycads</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>