Pythonichthys

Pythonichthys
Temporal range: Maastrichtian–present
P. microphthalmus
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Anguilliformes
Family: Heterenchelyidae
Genus: Pythonichthys
Poey, 1868
Type species
Pythonichthys sanguineus
Poey, 1868[1]
Synonyms[1]
  • Heterenchelys Regan, 1912

Pythonichthys is a genus of eels of the family Heterenchelyidae that occur in tropical waters of the eastern Pacific Ocean off of Panama and in the Atlantic Ocean near the Caribbean Sea and the west coast of Africa. It contains the following described species:[2]

In addition, the fossil species Pythonichthys arkansasensis Schwarzhans & Stringer, 2020 is known by otoliths from the Late Cretaceous (Maastrichtian) and Early Paleocene of Texas and Arkansas, USA. Its fossils are very common in formations shortly after the Cretaceous-Paleogene extinction event, suggesting that it was a disaster taxon that thrived in the wake of the extinction.[3][4] Otolith taxa Pythonichthys claibornensis (Dante & Frizzell, 1965) and Pythonichthys texanus (Dante & Frizzell, 1965) from the Eocene of Texas are also included in the genus.[5]

References

  1. ^ a b Fricke, Ron; Eschmeyer, William N. & van der Laan, Richard (eds.). "Genera in the family Heterenchelyidae". Catalog of Fishes. California Academy of Sciences. Retrieved 10 November 2024.
  2. ^ "WoRMS - World Register of Marine Species - Pythonichthys Poey, 1868". www.marinespecies.org. Retrieved 2024-02-18.
  3. ^ Schwarzhans, Werner; Stringer, Gary L. (2020-05-06). "Fish Otoliths from the Late Maastrichtian Kemp Clay (Texas, Usa) and the Early Danian Clayton Formation (Arkansas, Usa) and an Assessment of Extinction and Survival of Teleost Lineages Across the K-Pg Boundary Based on Otoliths". Rivista Italiana di Paleontologia e Stratigrafia. 126 (2). doi:10.13130/2039-4942/13425. ISSN 2039-4942.
  4. ^ Schwarzhans, Werner W.; Jagt, John W. M. (2021-11-01). "Silicified otoliths from the Maastrichtian type area (Netherlands, Belgium) document early gadiform and perciform fishes during the Late Cretaceous, prior to the K/Pg boundary extinction event". Cretaceous Research. 127 104921. Bibcode:2021CrRes.12704921S. doi:10.1016/j.cretres.2021.104921. ISSN 0195-6671.
  5. ^ Stringer, Gary L.; Grimsley, Gary J.; Fonger, George C.; Carpenter, Jeffrey D. (2026). "Taxonomy, palaeoecology and biostratigraphy of the Palaeocene teleostean otolith assemblages of the Aquia Formation (Selandian Piscataway and Thanetian Paspotansa members), Maryland, USA, including new genera and species". Historical Biology: An International Journal of Paleobiology. doi:10.1080/08912963.2026.2645139.


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