Pachycorioolithus
... that Pachycorioolithus is a kind of fossil egg native to China that is notable for having a three-layered eggshell with an unusually thick external layer?
... that <i id="mwAZc"><b id="mwAZg"><a href="./Pachycorioolithus" id="mwAZk" rel="mw:WikiLink" title="Pachycorioolithus">Pachycorioolithus</a></b></i> is a kind of <a class="mw-redirect" href="./Fossil_egg" id="mwAZo" rel="mw:WikiLink" title="Fossil egg">fossil egg</a> native to <a href="./China" id="mwAZs" rel="mw:WikiLink" title="China">China</a> that is notable for having a three-layered eggshell with an unusually thick external layer?