Gobioolithus
... that Gobioolithus is a type of fossil bird egg that often contains embryos with well-developed wings?
... that <i id="mwAzw"><b id="mwAz0"><a href="./Gobioolithus" id="mwAz4" rel="mw:WikiLink" title="Gobioolithus">Gobioolithus</a></b></i> is a type of fossil bird egg that often contains embryos with well-developed wings?