Priscosturion

{{Short description|Genus of fishes}}

{{Speciesbox

| fossil_range = {{fossilrange|Campanian}}{{cite journal |last1=Rodgers |first1=Raymond |title=Age, Correlation, and Lithostratigraphic Revision of the Upper Cretaceous (Campanian) Judith River Formation in Its Type Area (North-Central Montana), with a Comparison of Low- and High-Accommodation Alluvial Records |journal=The Journal of Geology |date=2016 |volume=124 |issue=1 |pages=99–135 |doi=10.1086/684289 |bibcode=2016JG....124...99R |s2cid=130555911 |url=https://www.journals.uchicago.edu/doi/abs/10.1086/684289?journalCode=jg|url-access=subscription }}

| genus = Priscosturion

| grandparent_authority = Grande and Hilton, 2009

| parent_authority = Grande and Hilton, 2009

| species = longipinnis

| authority = (Grande and Hilton, 2006)

| synonyms = {{Species list | Psammorhynchus | Grande & Hilton, 2006}}

}}

Priscosturion is a genus of sturgeon from the Judith River Formation. It lived during the Campanian stage of the Late Cretaceous some 77.5 million years ago. Initially called Psammorhynchus, its describers Lance Grande and Eric J. Hilton renamed the animal in 2009. The fish belongs to the subfamily Priscosturioninae within the larger family Acipenseridae.{{cite journal |title=A replacement name for Psammorhynchus Grande & Hilton, 2006 (Actinopterygii, Acipenseriformes, Acipenseridae) |journal=Journal of Paleontology |date=2009 |volume=83 |issue=2}} Priscosturion is only known from one species, P. longipinnis.