<span class="searchmatch">gephyrostegids</span> plural of <span class="searchmatch">gephyrostegid</span>...
<span class="searchmatch">gephyrostegid</span> (plural <span class="searchmatch">gephyrostegids</span>) (zoology) Any extinct reptile-like tetrapod in the family Gephyrostegidae....
of the clade Reptiliomorpha tetrapod amniote casinerian chroniosuchian diadectomorph embolomere <span class="searchmatch">gephyrostegid</span> lepospondyl seymouriamorph solenodonsaur...