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Challaia

Challaia
Temporal range: Ladinian[1][2]
↓
Fossil of Challaia elongata[3]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: †Elonichthyiformes
Family: †Acrolepidae
Genus: †Challaia
Rusconi, 1946
Type species
†Challaia magna
Rusconi, 1949
Other species
  • †Challaia elongata (Cabrera, 1944)

Challaia is an extinct genus of prehistoric freshwater ray-finned fish that lived during the Triassic period in what is now Argentina (Mendoza).[4] Two species are known, C. magna (type species), most likely from the Cerro de Las Cabras Formation, and C. elongata (previously assigned to Myriolepis) from the Los Rastros Formation.[5][1] Three other species, C. multidentata, C. striata and C.? cacheutensis, are considered nomina dubia.[1][3]

C. elongata is the youngest known member of the Acrolepididae, a family of early ray-finned fishes that was dominant throughout the late Paleozoic, and survived into the Triassic.[6]

See also

References

  1. ^ a b c López-Arbarello, Adriana; Rauhut, Oliver W. M.; Cerdeño, Esperanza (2010). "The Triassic fish faunas of the Cuyana Basin, Western Argentina". Palaeontology. 53 (2): 249–276. Bibcode:2010Palgy..53..249L. doi:10.1111/j.1475-4983.2010.00931.x. S2CID 129540287.
  2. ^ Romano, Carlo; Koot, Martha B.; Kogan, Ilja; Brayard, Arnaud; Minikh, Alla V.; Brinkmann, Winand; Bucher, Hugo; Kriwet, Jürgen (2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews. 91 (1): 106–147. doi:10.1111/brv.12161. PMID 25431138. S2CID 5332637.
  3. ^ a b López-Arbarello, Adriana; Rogers, Raymond; Puerta, Pablo (2006). "Freshwater actinopterygians of the Los Rastros Formation (Triassic), Bermejo Basin, Argentina". Fossil Record. 9 (2): 238–258. Bibcode:2006FossR...9..238L. doi:10.1002/mmng.200600011.
  4. ^ "PBDB Taxon". paleobiodb.org. Retrieved 2024-05-08.
  5. ^ López-Arbarello, A.; Rogers, R.; Puerta, P. (2006-08-01). "Freshwater actinopterygians of the Los Rastros Formation (Triassic), Bermejo Basin, Argentina". Fossil Record. 9 (2): 238–258. Bibcode:2006FossR...9..238L. doi:10.1002/mmng.200600011. ISSN 2193-0066.
  6. ^ Cavin, Lionel (2017), "Evolutionary Histories of Freshwater Fishes", Freshwater Fishes: 250 Million Years of Evolutionary History, Elsevier, pp. 53–125, doi:10.1016/b978-1-78548-138-3.50004-2, ISBN 978-1-78548-138-3, retrieved 2024-05-08
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