Pycnosterinx

{{Short description|Extinct genus of fishes}}

{{Automatic taxobox

| fossil_range = {{fossilrange|85.8|83.5|Santonian{{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 }}}}

| image = Pycnosterinx latus.JPG

| image_caption = Pycnosterinx latus

| taxon = Pycnosterinx

| authority = Heckel in Russegger, 1849

}}

Pycnosterinx is an extinct genus of prehistoric bony fish that lived during the Santonian.{{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 }}