Extinct genus of fishes
Enoplophthalmus is an extinct genus of prehistoric freshwater smelt that inhabited Europe during the Oligocene and early Miocene epoches, from the Rupelian to the Aquitanian. It appears to be closely related to the modern capelin ("Mallotus villosus"). Until the description of the Paleocene-aged "Speirsaenigma" from Canada, it was the oldest known fossil smelt genus.
The following species are known:
Indeterminate otoliths of this genus are known from Romania.
Alongside "Dapalis", "Enoplopthalmus" appears to have been one of the dominant freshwater fishes that inhabited Europe during the late Paleogene and early Neogene. Uniquely, "Enoplopthalmus" is most closely related to capelin, a fish of northern temperate and Arctic affinities, while "Dapalis" was related to the glassfishes, which are a mainly tropical group today. This indicates that there was significantly less provincialism in fish distribution during the mid-Cenozoic, allowing for these now widely separated groups to coexist. 
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