Styxosaurus
...that the first Styxosaurus fossil to be discovered had about 250 stones in its stomach that it probably swallowed for ballast?
...that the first <b id="mwEMs"><a href="./Styxosaurus" id="mwEMw" rel="mw:WikiLink" title="Styxosaurus">Styxosaurus</a></b> <a href="./Fossil" id="mwEM0" rel="mw:WikiLink" title="Fossil">fossil</a> to be discovered had about 250 <a href="./Gastrolith" id="mwEM4" rel="mw:WikiLink" title="Gastrolith">stones in its stomach</a> that it probably swallowed for <a href="./Ballast" id="mwEM8" rel="mw:WikiLink" title="Ballast">ballast</a>?