Atractosteus

Atractosteus; Temporal range: ; ~Santonian–Present, 86.3–0 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	Alligator gar
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Clade:	Ginglymodi
Order:	Lepisosteiformes
Family:	Lepisosteidae
Tribe:	Lepisosteini
Genus:	Atractosteus; (Rafinesque, 1820)
Type species
	Esox spatula; Lacépède, 1803
Species
	See text
Synonyms
	Lepisosteus (Atractosteus) Rafinesque 1820; Litholepis Rafinesque 1818;

Atractosteus is a genus of gars in the family Lepisosteidae, with three extant species. The genus first appeared during the Santonian stage of the Late Cretaceous.

Systematics

Lepisosteidae

Atractosteus

A. tropicus

	A. tristoechus

	A. spatula

Lepisosteus

	L. oculatus

	L. platyrhincus

	L. osseus

	L. platostomus

Species

Extant species

Scientific name	Common name	Distribution
Atractosteus spatula Lacépède, 1803	Alligator gar	Southern United States
Atractosteus tristoechus Bloch & J. G. Schneider, 1801	Cuban gar	Western Cuba and the Isla de la Juventud
Atractosteus tropicus T. N. Gill, 1863	Tropical gar	Southern Mexico to Costa Rica

Fossils

†Atractosteus africanus (Arambourg & Joleaud, 1943)^[4]
†Atractosteus atrox (Leidy, 1873)
†Atractosteus grandei (Brownstein & Lyson, 2022)^[5]
†Atractosteus emmonsi Hay 1929
†Atractosteus lapidosus Hay 1919
†Atractosteus messelensis Grande 2010
†Atractosteus occidentalis (Leidy 1856) non Wiley 1976
†Atractosteus simplex (Leidy 1873)

Former fossil genera:

†Atractosteus cuneatus (Cope 1884) non (Cope 1878) (now in Cuneatus)
†Atractosteus falipoui (Cavin & Brito 2001) (now in Oniichthys)

References

^ Szabó, M.; Gulyás, P.; Ősi, A. (2016). "Late Cretaceous (Santonian) Atractosteus (Actinopterygii, Lepisosteidae) remains from Hungary (Iharkút, Bakony Mountains)". Cretaceous Research: 239–252. doi:10.1016/j.cretres.2015.12.002.
^ Froese, R.; Pauly, D. (2017). "Lepisosteidae". FishBase version (02/2017). Retrieved 18 May 2017.
^ Van Der Laan, Richard; Eschmeyer, William N.; Fricke, Ronald (11 November 2014). "Family-group names of Recent fishes". Zootaxa. 3882 (1): 1–230. doi:10.11646/zootaxa.3882.1.1. PMID 25543675.
^ Cavin, Lionel; Martin, Michel; Valentin, Xavier (1996). "Occurrence of Atractosteus africanus (actinopterygii, lepisosteidae) in the early Campanien of Ventabren (Bouches-du-Rhône, France). Paleobiogeographical implications". Revue de Paléobiologie. 15 (1): 1–7.
^ Brownstein, Chase Doran; Lyson, Tyler R. (2022). "Giant gar from directly above the Cretaceous–Palaeogene boundary suggests healthy freshwater ecosystems existed within thousands of years of the asteroid impact". Biology Letters. 18 (6): 20220118. doi:10.1098/rsbl.2022.0118. PMC 9198771. PMID 35702983.

Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Atractosteus". FishBase. June 2011 version.

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[1] Szabó, M.; Gulyás, P.; Ősi, A. (2016). "Late Cretaceous (Santonian) Atractosteus (Actinopterygii, Lepisosteidae) remains from Hungary (Iharkút, Bakony Mountains)". Cretaceous Research: 239–252. doi:10.1016/j.cretres.2015.12.002.

[2] Froese, R.; Pauly, D. (2017). "Lepisosteidae". FishBase version (02/2017). Retrieved 18 May 2017.

[3] Van Der Laan, Richard; Eschmeyer, William N.; Fricke, Ronald (11 November 2014). "Family-group names of Recent fishes". Zootaxa. 3882 (1): 1–230. doi:10.11646/zootaxa.3882.1.1. PMID 25543675.

[Cavin-4] Cavin, Lionel; Martin, Michel; Valentin, Xavier (1996). "Occurrence of Atractosteus africanus (actinopterygii, lepisosteidae) in the early Campanien of Ventabren (Bouches-du-Rhône, France). Paleobiogeographical implications". Revue de Paléobiologie. 15 (1): 1–7.

[5] Brownstein, Chase Doran; Lyson, Tyler R. (2022). "Giant gar from directly above the Cretaceous–Palaeogene boundary suggests healthy freshwater ecosystems existed within thousands of years of the asteroid impact". Biology Letters. 18 (6): 20220118. doi:10.1098/rsbl.2022.0118. PMC 9198771. PMID 35702983.

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