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Hardistiella Temporal range: 326.4–318.1 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Infraphylum:	Agnatha
Class:	Petromyzontida
Order:	Petromyzontiformes
Family:	†Hardistiellidae Halstead 1993
Genus:	†Hardistiella Janvier and Lund 1983
Species:	†H. montanensis
Binomial name
†Hardistiella montanensis Janvier and Lund 1983

Hardistiella montanensis is an extinct species of lamprey, found, dating from the Carboniferous period, at the Bear Gulch Limestone site in the U.S. state of Montana.

References

1. ^ "Hardistiella montanensis". Paleobiology Database. Retrieved 16 March 2021.
2. "Hardistiella". Paleobiology Database. Retrieved 16 March 2021.
3. "Hardistiellidae". Paleobiology Database. Retrieved 16 March 2021.
4. "Hardistiella montanensis". Fossils Fishes of Bear Gulch. Archived from the original on 2015-02-25. Retrieved 2019-05-15.
5. Janvier, Philippe; Lund, Richard (1983). "Hardistiella montanensis N. gen. et sp. (Petromyzontida) from the Lower Carboniferous of Montana, with Remarks on the Affinities of the Lampreys". Journal of Vertebrate Paleontology. 2 (4): 407–413. Bibcode:1983JVPal...2..407J. doi:10.1080/02724634.1983.10011943. JSTOR 4522913.
6. Janvier, Philippe; Lund, Richard; Grogan, Eileen D. (September 15, 2004). "Further consideration of the earliest known lamprey,Hardistiella montanensis Janvier and Lund, 1983, from the Carboniferous of Bear Gulch, Montana, U.S.A". Journal of Vertebrate Paleontology. 24 (3): 742–743. doi:10.1671/0272-4634(2004)024[0742:FCOTEK]2.0.CO;2. S2CID 131704031.
7. P. Janvier and R. Lund. 1983. Hardistiella montanensis n. gen. et sp. (Petromyzontida) from the Lower Carboniferous of Montana, with remarks on the affinities of the lampreys. Journal of Vertebrate Paleontology 2(4):407-413

• Lampreys
• Fossils of Montana
• Fossil taxa described in 1983