Pycnodontiformes


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Pycnodontiformes

[‚pik·nə‚dänt·ə′fȯr‚mēz]
(paleontology)
An extinct order of specialized fishes characterized by a laterally compressed, disk-shaped body, long dorsal and anal fins, and an externally symmetrical tail.
References in periodicals archive ?
Five morphotypes may correspond to pycnodonts: Pycnodontiformes indet.
2013): History of two lineages: comparative analysis of the fossil record in Amiiformes and Pycnodontiformes (Osteichthyes, Actinopterygii).
Polysternon atlanticum Osteichthyes Actinopterygii Neopterygii Pycnodontiformes Pycnodontiformes indet.
RESUMEN: Los peces Pycnodontiformes estan principalmente representados por elementos craneales desarticulados, tales como el vomer o los prearticulares.
Palabras clave: Eomesodon, Pycnodontiformes, Actinopterygii, Neopterygii, Kimmeridgiense, Hanover, niveles de Pteroceras, NO de Alemania.
Key words: Eomesodon, Pycnodontiformes, Actinopterygii, Neopterygii, Kimmeridgian, Hanover, Pteroceras-layers, NW Germany.
These Jurassic faunas include taxa such as Amiiformes, Pycnodontiformes, and Ginglymodi.
18]O values (19,9[per thousand] to 21,9[per thousand]) as the "fish" Lepidotes and other Pycnodontiformes from five collecting sites in lithographic limestone in western Europe.