Villicumia
... that the Ordovician age bivalve Villicumia has overlapping teeth seen in few other bivalves?
... that the <a href="./Ordovician" id="mwBTY" rel="mw:WikiLink" title="Ordovician">Ordovician</a> age <a class="mw-redirect" href="./Bivalve" id="mwBTc" rel="mw:WikiLink" title="Bivalve">bivalve</a> <i id="mwBTg"><b id="mwBTk"><a href="./Villicumia" id="mwBTo" rel="mw:WikiLink" title="Villicumia">Villicumia</a></b></i> has overlapping teeth seen in few other bivalves?