Chitinozoans
...that eighty years on, scientists are still debating whether the Palæozoic fossils known as Chitinozoans represent plants, animals or eggs?
...that eighty years on, scientists are still debating whether the <a class="mw-redirect" href="./Palaeozoic" id="mwDt8" rel="mw:WikiLink" title="Palaeozoic">Palæozoic</a> <a href="./Fossil" id="mwDuA" rel="mw:WikiLink" title="Fossil">fossils</a> known as <b id="mwDuE"><a class="mw-redirect" href="./Chitinozoa" id="mwDuI" rel="mw:WikiLink" title="Chitinozoa">Chitinozoans</a></b> <i id="mwDuM">(<a class="mw-redirect" href="./Scanning_electron_microscopy" id="mwDuQ" rel="mw:WikiLink" title="Scanning electron microscopy">SEM</a> image pictured)</i> represent plants, animals or eggs?