| Amyzon Temporal range:
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| 10 cm (3.9 in) A. aggregatum fossil | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Catostomidae |
| Subfamily: | Ictiobinae |
| Genus: | †Amyzon Cope, 1872 |
| Type species | |
| †Amyzon mentale Cope, 1872
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| Species | |
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See text | |
Amyzon is an extinct genus belonging to the sucker family Catostomidae first described in 1872 by E. D. Cope.[1] There are six valid species in the genus. Amyzon are found in North American fossil sites dated from the Early Eocene in Montana and Washington USA, as well as the British Columbian sites at McAbee Fossil Beds, Driftwood Canyon, and the "Horsefly shale",[2] as well as Early Oligocene sites in Nevada USA.[1] One Middle Eocene species is known from the Xiawanpu Formation of China. The Ypresian species A. brevipinne of the Allenby Formation was redescribed in 2021 and moved to a separate monotypic genus Wilsonium.[3]
- ^ a b Cope, ED (1872). "On the Tertiary coal and fossils of Osino, Nevada". Proceedings of the American Philosophical Society. 12: 478–481. Retrieved 4 November 2022.
- ^ Wilson, MVH (1977). "Middle Eocene freshwater fishes from British Columbia". Life Sciences Contributions, Royal Ontario Museum. 113. Royal Ontario Museum: 1–66. Retrieved 4 November 2022.
- ^ Liu, J. (2021). "Redescription of "Amyzon" brevipinne and remarks on North American Eocene catostomids (Cypriniformes: Catostomidae)". Journal of Systematic Palaeontology. 19 (9): 1–13. doi:10.1080/14772019.2021.1968966.