Biology:Coccolepididae

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Short description: Extinct family of fish

Coccolepididae
Temporal range: Early Jurassic–Early Cretaceous
Coccolepis sp. with juvenile Pholidophorus sp. - Naturhistorisches Museum, Braunschweig, Germany - DSC05181 (cropped).JPG
Coccolepis sp.
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Subclass: Chondrostei
Family: Coccolepididae
Berg, 1940
Genera

See text

Synonyms

Coccolepidae Berg, 1940

Coccolepididae is an extinct family of ray-finned fish, known from the Early Jurassic to Early Cretaceous, most of which were originally referred to the type genus Coccolepis. They had a widespread distribution, being found in North and South America, Australia, Asia and Europe. They are mostly known from freshwater environments, though several species have been found in marine environments. They are morphologically conservative, and have poorly ossified endo and exoskeletons, which usually results in poor preservation. This makes it difficult to distinguish species.[1] They are generally small fish, with the largest known specimens reaching a length of 210 mm.[2] Historically, they have been classified as members of “Palaeonisciformes”, a paraphyletic grouping of non-neopterygian fish, due to their plesiomorphic conservative morphology closely resembling those of many other groups of primitive fish.[3] They have been suggested to be relatives of the Acipenseriformes within the Chondrostei.[1][2]

Taxonomy

After[1][2]

  • Coccolepis Agassiz, 1843 Solnhofen Limestone, Germany, Late Jurassic (Tithonian)
    • Coccolepis bucklandi Agassiz, 1843
    • Coccolepis solnhofensis López-Arbarello, and Ebert, 2021
  • "Coccolepis" liassica Woodward, 1890 Blue Lias or Charmouth Mudstone Formation, England, Early Jurassic (Sinemurian)
  • "Coccolepis" australis Woodward, 1895 Talbragar Fossil Beds, Australia, Late Jurassic (Tithonian)
  • Morrolepis Kirkland, 1998
  • Barbalepis Olive, Taverne, and López-Arbarello, 2019 Sainte-Barbe Clays Formation, Belgium, Early Cretaceous (Barremian/Aptian) formerly Coccolepis macroptera Traquair, 1911
  • Condorlepis López-Arbarello, Sferco, and Rauhut, 2013
    • Condorlepis groeberi (Bordas, 1943) Cañadón Calcáreo Formation, Argentina, Upper Jurassic
    • Condorlepis woodwardi (Waldman, 1971) Koonwarra fossil bed, Australia, Early Cretaceous (Aptian)
  • Iyalepis Sytchevskaya, 2006 Cheremkhovskaya Formation, Russia, Early Jurassic (Toarcian) formerly Angaraichthys rohoni Sytchevskaya and Yakovlev, 1985
  • Plesiococcolepis Wang, 1977 Lingling-Hengyang, Hunan, China, Early Jurassic
    • Plesiococcolepis hunanensis Wang, 1977
  • Sunolepis Liu, 1957 Yumen, Gansu Province, China, Upper Jurassic or Lower Cretaceous
    • Sunolepis yumenensis Liu, 1957

References

Wikidata ☰ Q25927479 entry