Gyrodus

Gyrodus; Temporal range: Bajocian–Barremian PreꞒ Ꞓ O S D C P T J K Pg N
	Life restoration of Gyrodus hexagonus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	†Pycnodontiformes
Family:	†Pycnodontidae
Genus:	†Gyrodus; Agassiz, 1843
Species
	G. circularisAgassiz, 1833; G. cordillera Martill et al., 1998; G. cretaceus Agassiz, 1844; G. hexagonusde Blainville, 1818; G. huiliches Gouiric-Cavalli et al., 2019; G. milium Henry, 1876;

Gyrodus (from Greek: γύρος gyros, 'curved' and Greek: ὀδούς odoús 'tooth')^[1] is an extinct genus of pycnodontiform ray-finned fish that lived from the middle Jurassic (Bajocian) to the middle Cretaceous (Barremian).^[2]

References

^ Roberts, George (1839). An etymological and explanatory dictionary of the terms and language of geology. London: Longman, Orme, Brown, Green, & Longmans. p. 74. Retrieved 30 December 2021.
^ Kriwet, Jürgen; Schmitz, Lars (2005). "New insight into the distribution and palaeobiology of the pycnodont fish Gyrodus". Acta Palaeontologica Polonica. 50 (1): 49–56.