Triodus Explained

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]

Further reading

• The Rise of Fishes: 500 Million Years of Evolution by John A. Long

Notes and 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 . 10.1016/j.jsames.2017.09.007 . 2017JSAES..80..482P .