Triodus
Extinct genus of cartilaginous fishes
Triodus Temporal range: Late Carboniferous–Middle Permian PreꞒ Ꞓ O S D C P T J K Pg N | |
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Fossil | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Subclass: | Elasmobranchii |
Order: | †Xenacanthida |
Family: | †Xenacanthidae |
Genus: | †Triodus Jordan, 1849 |
Species | |
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Triodus is an extinct genus of xenacanthiform cartilaginous fish that lived from the Carboniferous to the Permian. In 2017, a new species Triodus richterae was described from the Rio do Rasto Formation of Brazil.[1]
References
- ^ Victor E. Pauliv; Agustín G. Martinelli; Heitor Francischini; Paula Dentzien-Dias; Marina B. Soares; Cesar L. Schultz; Ana M. Ribeiro (2017). "The first Western Gondwanan species of Triodus Jordan 1849: A new Xenacanthiformes (Chondrichthyes) from the late Paleozoic of Southern Brazil". Journal of South American Earth Sciences. 80: 482–493. Bibcode:2017JSAES..80..482P. doi:10.1016/j.jsames.2017.09.007.
Further reading
- The Rise of Fishes: 500 Million Years of Evolution by John A. Long
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