Triodus

Triodus
Temporal range: Late Carboniferous–Middle Permian
Fossil
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: †Xenacanthiformes
Family: †Xenacanthidae
Genus: †Triodus
Jordan, 1849
Species
  • T. elpia
  • T. richterae
Restoration of T. sesselensis

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

  1. ^ 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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