Cosmolepis

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Temporal range: Early Jurassic (Sinemurian)
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Scientific classification Edit this classification
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Binomial name
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Egerton, 1858
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Synonyms

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Cosmolepis is an extinct genus of prehistoric marine ray-finned fish that lived during the Early Jurassic epoch.[2] It contains a single species, C. ornatus from the Blue Lias in what is now England. It is the only member of the family Cosmolepididae.[1][3]

It was formerly placed in the Palaeonisciformes, a group of basal ray-finned fishes that is now considered to be paraphyletic.[4][5] It is distinctive for its well-mineralized scales covered in ganoine. Its cheek and jaws have striated ridges of enamel.[6]

Specimens from the Moltrasio Formation of Osteno, Italy have been placed in this species based on non-reliable morphological features common among many "palaeoniscoid" fish, and thus may not be representatives of this taxon.[7] In 2026 they were placed in their own genus, Ostenolepis.[8]

See also

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References

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  1. ^ a b Page Module:Citation/CS1/styles.css has no content.Schultze, Hans-Peter; Mickle, Kathryn E.; Poplin, Cecile; Hilton, Eric J.; Grande, Lance (2021). Handbook of Paleoichthyology, 8A. Actinopterygii I. Palaeoniscimorpha, Stem Neopterygii, Chondrostei. Dr. Friedrich Pfeil, München. p. 299. ISBN 978-3-89937-272-4.
  2. ^ Page Module:Citation/CS1/styles.css has no content."PBDB Taxon". paleobiodb.org. Retrieved 2024-06-18.
  3. ^ Page Module:Citation/CS1/styles.css has no content.Laan, Richard van der (2018-10-11). "Family-group names of fossil fishes". European Journal of Taxonomy (466). doi:10.5852/ejt.2018.466. ISSN 2118-9773.
  4. ^ Page Module:Citation/CS1/styles.css has no content.Schaeffer, Bobb. "The palaeoniscoid fish Turseodus from the Upper Triassic Newark group. American Museum novitates ; no. 1581". Biodiversity Heritage Library. Retrieved 2024-06-18.
  5. ^ Page Module:Citation/CS1/styles.css has no content.Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016-02-22). Fishes of the World. Wiley. ISBN 978-1-118-34233-6.
  6. ^ Page Module:Citation/CS1/styles.css has no content.Cooper, Samuel L. A.; López-Arbarello, Adriana; Maxwell, Erin E. (2024-04-15). "First occurrence of a †coccolepidid fish (?Chondrostei: †Coccolepididae) from the Upper Lias (Toarcian, Early Jurassic) of southern Germany". Palaeontologia Electronica. 27 (1): 1–25. doi:10.26879/1326. ISSN 1094-8074.
  7. ^ Page Module:Citation/CS1/styles.css has no content.Franceschi, Fabio; Marrama, Giuseppe; Carnevale, Giorgio (2024). "The enigmatic "palaeoniscoid" fishes from the Lower Jurassic (Sinemurian) of the Southern Alps (Osteno, Como, Italy)" (PDF). Paleodays. XXIV (4): 62.
  8. ^ Page Module:Citation/CS1/styles.css has no content.Franceschi, F.; Marramà, G.; Carnevale, G. (2026). "Bony fishes (Osteichthyes) from the Sinemurian (Jurassic) Osteno Konservat-Lagerstätte (Como, NW Italy)". Rivista Italiana di Paleontologia e Stratigrafia. 132 (1): 9–58. doi:10.54103/2039-4942/29058.

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