Debuxo da cabeza das serpes da escalinata do templo de Kukulkán en Iucatán, México. Debuxo de Frederick Catherwood no libro <i>Incidents of travel in Yucatan</i> de 1843 de John Lloyd Stephens.
<bdi><a href="https://en.wikipedia.org/wiki/en:Frederick_Catherwood" class="extiw" title="w:en:Frederick Catherwood"><span title="British Mesoamericanist, explorer, artist, architect, and photographer (1799-1854)">Frederick Catherwood</span></a>
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