Protanthias

{{Short description|Extinct genus of fishes}}

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| fossil_range = {{fossilrange|11.6|5.3|Upper Miocene{{cite journal | last = Sepkoski | first = Jack | title = A compendium of fossil marine animal genera | journal = Bulletins of American Paleontology | volume = 364 |page=560 | year = 2002 | url = http://strata.ummp.lsa.umich.edu/jack/showgenera.php?taxon=611&rank=class | accessdate = 2009-02-27 }}}}

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| taxon = Protanthias

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Protanthias is an extinct genus of prehistoric bony fish that lived during the Upper Miocene subepoch.