Eotetraodon
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Eotetraodon ("dawn Tetraodon") is an extinct genus of miniature prehistoric pufferfish that lived in Europe from the early to mid-late Eocene. It is the earliest pufferfish known from fossil remains.[1][2]
The following species are known:
- †E. gornylutshensis Bannikov & Tyler, 2008 - mid-late Eocene (Bartonian) of the North Caucasus, Russia (Kuma Formation)[3]
- †E. pygmaeus (de Zigno, 1887) (type species) - early Eocene of Italy (Monte Bolca lagerstatten)[4]
- †E. tavernei Tyler & Bannikov, 2012 - early Eocene of Italy (Monte Bolca lagerstatten)[5]
As the name of the type species suggests, Eotetraodon was a very small fish that (depending on the species) reached only Script error: No such module "convert".. Despite this very small size, fossil specimens are fully ossified, suggesting that they are of adult individuals.[3]
Although generally considered an early pufferfish, some recent studies have placed it as part of an evolutionary grade, containing several other Bolca tetraodontiforms, leading to the threetooth puffer (Triodon), a different tetraodontiform fish.[6]
References
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