<a href="//commons.wikimedia.org/wiki/Fossil" title="Fossil">Fossilised</a> <i>Asaphus expansus</i> <a href="//commons.wikimedia.org/wiki/Trilobite" class="mw-redirect" title="Trilobite">trilobite</a> from <a href="//commons.wikimedia.org/wiki/St._Petersburg" class="mw-redirect" title="St. Petersburg">St. Petersburg</a>, <a href="//commons.wikimedia.org/wiki/Russia" class="mw-redirect" title="Russia">Russia</a>. Dated to the <a href="//commons.wikimedia.org/w/index.php?title=Ordovician&amp;action=edit&amp;redlink=1" class="new" title="Ordovician (page does not exist)">Ordovician</a>. Today at the <a href="//commons.wikimedia.org/wiki/Naturhistorisches_Museum" title="Naturhistorisches Museum">Naturhistorisches Museum</a> in <a href="//commons.wikimedia.org/wiki/Vienna" class="mw-redirect" title="Vienna">Vienna</a>.
<a href="//commons.wikimedia.org/wiki/User:Gryffindor" title="User:Gryffindor">Gryffindor</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>