Yelovichnus
... that fossils of Yelovichnus were initially believed to be the feeding trails of other organisms?
... that <a href="./Fossil" id="mwCcY" rel="mw:WikiLink" title="Fossil">fossils</a> of <i id="mwCcc"><b id="mwCcg"><a class="mw-redirect" href="./Yelovichnus" id="mwCck" rel="mw:WikiLink" title="Yelovichnus">Yelovichnus</a></b></i> were initially believed to be the feeding trails of other organisms?