Chardonius

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Chardonius
Temporal range: Aptian or Albian
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Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
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. [1] [2]

Contents

Its taxonomic placement is uncertain, and it has been alternatively classified as a "clupeoid" or a "salmoniform". [2] [3] The latter classification is now thought to be a wastebasket treatment. [4] It is currently considered an indeterminate euteleost. [5]

Morphologically, it is notable for the extreme anterior insertion point of its dorsal fin compared to the anal fin. [5] [6]

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.
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