Prionosuchus
...that the extinct crocodile-like Prionosuchus is the largest amphibian known to have existed?
...that the <a class="mw-redirect" href="./Extinct" id="mwCHI" rel="mw:WikiLink" title="Extinct">extinct</a> <a href="./Crocodile" id="mwCHM" rel="mw:WikiLink" title="Crocodile">crocodile</a>-like <i id="mwCHQ"><b id="mwCHU"><a href="./Prionosuchus" id="mwCHY" rel="mw:WikiLink" title="Prionosuchus">Prionosuchus</a></b></i> is the largest <a href="./Amphibian" id="mwCHc" rel="mw:WikiLink" title="Amphibian">amphibian</a> known to have existed?