Pisanosaurus
... that Pisanosaurus, from 228 to 216.5 million years ago, is the oldest known ornithischian dinosaur?
... that <i id="mwDoc"><b id="mwDog"><a href="./Pisanosaurus" id="mwDok" rel="mw:WikiLink" title="Pisanosaurus">Pisanosaurus</a></b></i>, from 228 to 216.5 million years ago, is the oldest known <a class="mw-redirect" href="./Ornithischian" id="mwDoo" rel="mw:WikiLink" title="Ornithischian">ornithischian</a> <a href="./Dinosaur" id="mwDos" rel="mw:WikiLink" title="Dinosaur">dinosaur</a>?