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Gyrolepis

From Wikipedia, the free encyclopedia

Gyrolepis
Temporal range: Anisian-Rhaetian
Gyrolepis albertii fossil
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: †Palaeonisciformes
Family: †Palaeoniscidae
Genus: †Gyrolepis
Agassiz, 1835
Type species
Gyrolepis albertii
Agassiz, 1835
Other species
  • †G. agassizi (Münster, 1835)
  • †G. angulisulcatus Oertle, 1927
  • †G. quenstedti Dames, 1888
  • †G. parcisquamosus Oertle, 1927
  • †G. pompeckji Oertle, 1927

Gyrolepis is an extinct genus of prehistoric marine ray-finned fish from the Middle-Late Triassic epochs in what is now Europe. It is known both from complete specimens and isolated skeletal elements, such as scales or teeth.

Taxonomy

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The following species are placed in this genus:[1][2][3]

An indeterminate species is known from the Besano Formation of Italy & Switzerland.[2] A potential species is also known from the Rhaetian of China.[1]

Isolated teeth and scales ascribed to Gyrolepis

Distribution

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Gyrolepis fossils have been found across much of the Northern Hemisphere, but the genus was by far most common in Europe.[6] G. albertii, the type species of the genus, is a ubiquitous component of Rhaetian biotas in Europe.[7]

See also

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References

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  1. 1 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.
  2. 1 2 "†Gyrolepis Agassiz 1833 (ray-finned fish)". The Paleobiology Database.
  3. ↑ Geology, British Museum (Natural History) Department of; Woodward, Arthur Smith (1891). Catalogue of the Fossil Fishes in the British Museum (Natural History): Elasmobranchii (Acanthodii), Holocephali, ichthyodorulites, Ostracodermi, Dipnoi, and Teleostomi (Crossopterygii and chondrostean Actinopterygii). order of the Trustees.
  4. ↑ Haarhuis, Adam; J. Diependaal, Henk (2019-01-01). "The fish fauna of the Winterswijk Vossenveld Formation". Staringia. 16 (1): 198–207. ISSN 0165-2354.
  5. ↑ Cavicchini, Iacopo; Heyworth, H. Cecilia; Duffin, Christopher J.; Hildebrandt, Claudia; Benton, Michael J. (2018-04-01). "A Rhaetian microvertebrate fauna from Stowey Quarry, Somerset, U.K." Proceedings of the Geologists' Association. 129 (2): 144–158. doi:10.1016/j.pgeola.2018.02.001. hdl:1983/84fa3358-c8a1-4feb-81f6-ea403885b21d. ISSN 0016-7878.
  6. ↑ "Gyrolepis". Paleobiology Database.
  7. ↑ Numberger-Thuy, Lea D.; Aiglstorfer, Manuela; Delsate, Dominique; Feist-Burkhardt, Susanne; Gräbenstein, Stefan; Havlik, Philipe; Régnier, Sylvie; Servais, Thomas; Thuy, Ben (1 July 2025). "An exceptional window into the Triassic-Jurassic boundary on the margins of the Ardenno-Rhenish Massif: stratigraphy and palaeontology of the Irrel section (Rhineland-Palatinate, Germany)". Swiss Journal of Palaeontology. 144 (1). doi:10.1186/s13358-025-00384-3. ISSN 1664-2376. Retrieved 26 March 2026 – via Springer Open.
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