Gyrosteus
| Gyrosteus Temporal range: Lower Toarcian Possible Bathonian record
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|---|---|
| Restoration of Gyrosteus | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | †Chondrosteiformes |
| Family: | †Chondrosteidae |
| Genus: | †Gyrosteus Agassiz, 1843 |
| Type species | |
| †Gyrosteus mirabilis [2] Agassiz 1844
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| Species | |
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Gyrosteus is an extinct genus of ray-finned fish from the family Chondrosteidae that lived during the Lower Jurassic. It has a single species, G. mirabilis.
There could be a "second" species, G. subdeltoideus. However, not much data has been gathered on it, but it is known from otoliths.
Description
This large fish had a sturgeon-like body, reaching 6 metres (20 ft) to 7 metres (23 ft) long.
Specimens
Gyrosteus is only known from incomplete fossil specimens.
References
- Hornung, Jahn J.; Sachs, Sven (2020). "First record of Gyrosteus mirabilis (Actinopterygii, Chondrosteidae) from the Toarcian (Lower Jurassic) of the Baltic region". PeerJ.
- ↑ Stinton, F.C.; Torrens, H.S. (1968). "Fish otoliths from the Bathonian of southern England. Palaeontology". 11 (2): 246–258. Retrieved 21 November 2021.
- ↑ Agassiz L. 1834. Recherches sur les Poissons Fossiles: Tome I. Neuchatel: Imprimerie de Petitpierre. 188