Andreolepis hedei

Andreolepis hedei; Temporal range: Late Silurian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Superclass:	Osteichthyes
Class:	Actinopterygii
Order:	Palaeonisciformes
Family:	Andreolepididae
Genus:	Andreolepis
Species:	A. hedei
Binomial name
	Andreolepis hedei; Gross, 1968

Andreolepis hedei is an extinct prehistoric fish, living around 420 million years ago.^[1] Although Andreolepis was generally regarded as a primitive actinopterygiian based on its ganoid scale structure, some new research regards it as a stem group of osteichthyans.^[2]

It inhabited what is now Russia, Sweden, Estonia, and Latvia.^[3]

References

^ Andreolepis (Actinopterygii) in the Upper Silurian of Northern Eurasia>
^ Botella, Hector; Blom, Henning; Dorka, Markus; Ahlberg, Per Erik; Janvier, Philippe (August 2007). "Jaws and teeth of the earliest bony fishes". Nature. 448 (7153): 583–586. doi:10.1038/nature05989. ISSN 1476-4687.
^ The Paleobiology Database

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[1] Andreolepis (Actinopterygii) in the Upper Silurian of Northern Eurasia>

[2] Botella, Hector; Blom, Henning; Dorka, Markus; Ahlberg, Per Erik; Janvier, Philippe (August 2007). "Jaws and teeth of the earliest bony fishes". Nature. 448 (7153): 583–586. doi:10.1038/nature05989. ISSN 1476-4687.

[3] The Paleobiology Database

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