Brazilichthys Explained

Brazilichthys is an extinct genus of prehistoric freshwater ray-finned fish that lived during the Cisuralian (early Permian) epoch in what is now Maranhão, Brazil (Parnaíba Basin).^{[1] [2]} The type and only species, B. macrognathus, is known from a single partially complete skull (ca. 80mm long),^[3] which was recovered from the Pedra de Fogo Formation near Pastos Bons, Maranhão, Brazil.^[1]

Classification

Brazilichthys is referred to its own family, Brazilichthyidae^[3] (monotypy). Its evolutionary relationships to other genera are not well known. It was hypothesized that Brazilichthys could be closely related to the Triassic Birgeria,^[4] though this was subsequently considered unlikely.^[1]

See also

• Prehistoric fish
• List of prehistoric bony fish

Notes and References

1. Figueroa . Rodrigo T. . Friedman . Matt . Gallo . Valéria . Cranial anatomy of the predatory actinopterygian Brazilichthys macrognathus from the Permian (Cisuralian) Pedra de Fogo Formation, Parnaíba Basin, Brazil . Journal of Vertebrate Paleontology . 2019 . 39 . 3 . e1639722 . 10.1080/02724634.2019.1639722. 2019JVPal..39E9722F . 92614261 .
2. Web site: PBDB . 2024-04-02 . paleobiodb.org.
3. Cox . C. Barry . Hutchinson . Peter . 1991 . Fishes and amphibians from the late Permian Pedra De Fogo Formation of northern Brazil . Palaeontology . 34 . 3 . 561–573 .
4. Romano . Carlo . Brinkmann . Winand . 2009 . Reappraisal of the lower actinopterygian Birgeria stensioei ALDINGER, 1931 (Osteichthyes; Birgeriidae) from the Middle Triassic of Monte San Giorgio (Switzerland) and Besano (Italy).. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen . 252 . 1 . 17–31 . 10.1127/0077-7749/2009/0252-0017.