Trimerorhachis
... that the Permian amphibian Trimerorhachis either brooded young in its mouth or ate them?
... that the <a href="./Permian" id="mwCgI" rel="mw:WikiLink" title="Permian">Permian</a> amphibian <i id="mwCgM"><b id="mwCgQ"><a href="./Trimerorhachis" id="mwCgU" rel="mw:WikiLink" title="Trimerorhachis">Trimerorhachis</a></b></i> either <a class="mw-redirect" href="./Mouth_brooding" id="mwCgY" rel="mw:WikiLink" title="Mouth brooding">brooded</a> young in its mouth or <a class="mw-redirect" href="./Cannibalism_(zoology)" id="mwCgc" rel="mw:WikiLink" title="Cannibalism (zoology)">ate them</a>?