Acer douglasense
... that the early Eocene maple species Acer douglasense is the second-oldest maple known from Alaska?
... that the <a class="mw-redirect" href="./Early_Eocene" id="mwDJQ" rel="mw:WikiLink" title="Early Eocene">early Eocene</a> <a href="./Maple" id="mwDJU" rel="mw:WikiLink" title="Maple">maple</a> species <i id="mwDJY"><b id="mwDJc"><a href="./Acer_douglasense" id="mwDJg" rel="mw:WikiLink" title="Acer douglasense">Acer douglasense</a></b></i> is the second-oldest maple known from Alaska?