Phylum Chordata | Family Xenacanthidae Rank Genus | |
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Similar Xenacanthida, Xenacanthidae, Orthacanthus, Xenacanthus, Elasmobranchii | ||
Triodus is an extinct genus of xenacanthidan shark that lived in the Permian. It was a freshwater shark, and fossils have been found in Germany.
References
Triodus Wikipedia(Text) CC BY-SA