<?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:contributor>Joanne Kluessendorf</dc:contributor>
  <dc:contributor>Donald G. Mikulic</dc:contributor>
  <dc:creator>S.T. LoDuca</dc:creator>
  <dc:date>2003</dc:date>
  <dc:description>&lt;p&gt;Noncalcified&lt;span&gt;&amp;nbsp;thalli, consisting of&amp;nbsp;&lt;/span&gt;a&lt;span&gt;&amp;nbsp;narrow main axis with numerous branched hairlike laterals in whorls and&amp;nbsp;&lt;/span&gt;a&lt;span&gt;&amp;nbsp;subapical array of undivided clavate laterals, from the&amp;nbsp;&lt;/span&gt;Silurian&lt;span&gt;&amp;nbsp;(Llandovery) Brandon Bridge Formation of southeastern&amp;nbsp;&lt;/span&gt;Wisconsin&lt;span&gt;, constitute the basis for&amp;nbsp;&lt;/span&gt;a&lt;span&gt;&amp;nbsp;&lt;/span&gt;new&lt;span&gt;&amp;nbsp;genus and species of&amp;nbsp;&lt;/span&gt;dasycladalean&lt;span&gt;&amp;nbsp;&lt;/span&gt;alga&lt;span&gt;, Heterocladus waukeshaensis.&amp;nbsp;&lt;/span&gt;A&lt;span&gt;&amp;nbsp;relationship within the family Triploporellaceae is indicated by the whorled arrangement of the laterals and the absence of gametophores on mature specimens.&amp;nbsp;&lt;/span&gt;A&lt;span&gt;&amp;nbsp;compilation of occurrence data suggests that&amp;nbsp;&lt;/span&gt;noncalcified&lt;span&gt;&amp;nbsp;dasyclads, as&amp;nbsp;&lt;/span&gt;a&lt;span&gt;&amp;nbsp;whole, were more abundant and diverse during the Ordovician and&amp;nbsp;&lt;/span&gt;Silurian&lt;span&gt;&amp;nbsp;than at any other time in their history. The heterocladous thallus architecture of this&amp;nbsp;&lt;/span&gt;alga&lt;span&gt;&amp;nbsp;adds to&amp;nbsp;&lt;/span&gt;a&lt;span&gt;&amp;nbsp;wide range of morphological variation documented among Ordovician and&amp;nbsp;&lt;/span&gt;Silurian&lt;span&gt;&amp;nbsp;dasyclads, the sum of which indicates that Dasycladales underwent&amp;nbsp;&lt;/span&gt;a&lt;span&gt;&amp;nbsp;significant evolutionary radiation during the early Paleozoic.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1666/0022-3360(2003)077&lt;1152:ANNDAF&gt;2.0.CO;2</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>BioOne</dc:publisher>
  <dc:title>A new noncalcified dasycladalean alga from the silurian of Wisconsin</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>