<?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>D. Bukry</dc:contributor>
  <dc:contributor>L. Liu</dc:contributor>
  <dc:contributor>J.R. Young</dc:contributor>
  <dc:creator>A. Peleo-Alampay</dc:creator>
  <dc:date>1998</dc:date>
  <dc:description>&lt;p&gt;&lt;span&gt;A systematic study on the evolution and stratigraphic distribution of the species of&amp;nbsp;&lt;/span&gt;&lt;i&gt;Catinaster&lt;/i&gt;&lt;span&gt;&amp;nbsp;from several DSDP/ODP sites with magnetostratigraphic records is presented. The evolution of&amp;nbsp;&lt;/span&gt;&lt;i&gt;Catinaster&lt;/i&gt;&lt;span&gt;&amp;nbsp;from&amp;nbsp;&lt;/span&gt;&lt;i&gt;Discoaster&lt;/i&gt;&lt;span&gt;&amp;nbsp;is established by documentation of a transitional nannofossil species,&amp;nbsp;&lt;/span&gt;&lt;i&gt;Discoaster transitus.&lt;/i&gt;&lt;span&gt;&amp;nbsp;Two new subspecies,&amp;nbsp;&lt;/span&gt;&lt;i&gt;Catinaster coalitus extensus&lt;/i&gt;&lt;span&gt;&amp;nbsp;and&amp;nbsp;&lt;/span&gt;&lt;i&gt;Catinaster calyculus rectus&lt;/i&gt;&lt;span&gt;&amp;nbsp;are defined which appear to be intermediates in the evolution of&amp;nbsp;&lt;/span&gt;&lt;i&gt;Catinaster coalitus coalitus&lt;/i&gt;&lt;span&gt;&amp;nbsp;to&amp;nbsp;&lt;/span&gt;&lt;i&gt;Catinaster calyculus calyculus.&lt;/i&gt;&lt;span&gt;&amp;nbsp;The first occurrence of&amp;nbsp;&lt;/span&gt;&lt;i&gt;C. coalitus&lt;/i&gt;&lt;span&gt;&amp;nbsp;is shown to be in the lower part of C5n.2n at 10.7–10.9 Ma in the low to mid–latitude Atlantic and Pacific Oceans. The last occurrence of&amp;nbsp;&lt;/span&gt;&lt;i&gt;C. coalitus coalitus&lt;/i&gt;&lt;span&gt;&amp;nbsp;varies from the upper part of C5n.2n to the lower portion of C4A. Magnetobiostratigraphic evidence suggests that the FO of&amp;nbsp;&lt;/span&gt;&lt;i&gt;C. calyculus rectus&lt;/i&gt;&lt;span&gt;&amp;nbsp;is diachronous.&amp;nbsp;&lt;/span&gt;&lt;i&gt;Catinaster mexicanus&lt;/i&gt;&lt;span&gt;&amp;nbsp;occurs in the late Miocene and has been found only in the eastern equatorial Pacific, the Indian Ocean and the Gulf of Mexico.&lt;/span&gt;&lt;/p&gt;</dc:description>
  <dc:format>application/pdf</dc:format>
  <dc:identifier>10.1144/jm.17.1.71</dc:identifier>
  <dc:language>en</dc:language>
  <dc:publisher>Copernicus Publications</dc:publisher>
  <dc:title>Late Miocene calcareous nannofossil genus Catinaster: Taxonomy, evolution and magnetobiochronology</dc:title>
  <dc:type>article</dc:type>
</oai_dc:dc>