Chardonius

Chardonius
Temporal range: Aptian or Albian
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Division: Teleostei
Cohort: Euteleostei
Genus: †Chardonius
Taverne, 1975
Species:
†C. longicaudatus
Binomial name
†Chardonius longicaudatus
Taverne, 1975

Chardonius is an extinct genus of prehistoric freshwater ray-finned fish from the late Aptian or early Albian. It contains a single species, C. longicaudatus, from the Loia Beds of the Democratic Republic of the Congo.

Its taxonomic placement is uncertain, and it has been alternatively classified as a "clupeoid" or a "salmoniform". The latter classification is now thought to be a wastebasket treatment. It is currently considered an indeterminate euteleost.

Morphologically, it is notable for the extreme anterior insertion point of its dorsal fin compared to the anal fin.

See also

References

  1. ↑ "PBDB Taxon". paleobiodb.org. Retrieved 2024-05-09.
  2. 1 2 López-Arbarello, Adriana. "The record of Mesozoic fishes from Gondwana (excluding India and Madagascar)". Mesozoic Fishes 3 – Systematics, Paleoenvironments and Biodiversity.
  3. ↑ Maisey, John G. (2000-04-01). "Continental break up and the distribution of fishes of Western Gondwana during the Early Cretaceous". Cretaceous Research. 21 (2): 281–314. doi:10.1006/cres.1999.0195. ISSN 0195-6671.
  4. ↑ Gallo, Valéria; de Figueiredo, Francisco J.; Azevedo, Sergio A. (2009). "Santanasalmo elegans gen. et sp. nov., a basal euteleostean fish from the Lower Cretaceous of the Araripe Basin, northeastern Brazil - Supplementary Material" (PDF). Cretaceous Research. 30 (6): 1357–1366. doi:10.1016/j.cretres.2009.07.005. ISSN 0195-6671.
  5. 1 2 Clarke, J. (2015). Evolutionary patterns derived from 150 million years of morphological and functional evolution in neopterygian fishes (Thesis). Oxford University, UK.
  6. ↑ Clarke, John T.; Friedman, Matt (2018). "Body-shape diversity in Triassic–Early Cretaceous neopterygian fishes: sustained holostean disparity and predominantly gradual increases in teleost phenotypic variety". Paleobiology. 44 (3): 402–433. doi:10.1017/pab.2018.8. ISSN 0094-8373.