| Chongichthys Temporal range: Oxfordian  ~  | |
|---|---|
|  Scientific classification   | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Actinopterygii | 
| Order: | † Crossognathiformes | 
| Family: | † Chongichthyidae  Arratia, 1982  | 
| Genus: | † Chongichthys  Arratia, 1982  | 
| Species: | †C. dentatus  | 
| Binomial name | |
| †Chongichthys dentatus  Arratia, 1982  | |
Chongichthys is an extinct genus of marine ray-finned fish that lived during the Oxfordian stage of the Late Jurassic epoch. [1] It contains one species, C. dentatus from the Quebrada El Profeta of Chile. [2] It is named after Chilean geologist Guillermo Chong. [3]
Its phylogenetic relationships have long been enigmatic, with it initially being classified as an indeterminate teleost, or more specifically an indeterminate clupeocephalan. However, more recent studies have recovered it as a basal crossognathiform. It is one of the earliest crossognathiforms known. [4] [5] [6]