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Cardiocephalus
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<h2 id="external-links">External links</h2> <ul><li><a href="https://web.archive.org/web/20081201083838/http://www.permiantetrapods.net/CARDIOCEPHALUS%20PEABODYI.htm"><i>Cardiocephalus</i> fossil pictures.</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"†Cardiocephalus Broili 1904". Paleobiology Database. Fossilworks. Retrieved 17 December 2021. <a href="https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=137380" target="_blank">https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=137380</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> </ol>