Fagus langevinii
... that Fagus langevinii is considered to be the oldest extinct species of beech tree?
... that <i id="mwBVI"><b id="mwBVM"><a href="./Fagus_langevinii" id="mwBVQ" rel="mw:WikiLink" title="Fagus langevinii">Fagus langevinii</a></b></i> is considered to be the oldest extinct species of beech tree?