Pristisomus

{{Short description|Extinct genus of fishes}}

{{Automatic taxobox

| fossil_range = {{fossilrange|247|241|Anisian{{cite journal |last1=Romano |first1=Carlo |last2=Koot |first2=Martha B. |last3=Kogan |first3=Ilja |last4=Brayard |first4=Arnaud |last5=Minikh |first5=Alla V. |last6=Brinkmann |first6=Winand |last7=Bucher |first7=Hugo |last8=Kriwet |first8=Jürgen |title=Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution |journal=Biological Reviews |date=2016 |volume=91 |issue=1 |pages=106–147 |doi=10.1111/brv.12161 |pmid=25431138 |s2cid=5332637}}}}

| image = Pristisomus NMNH.jpg

| image_caption = P. latus fossil, National Museum of Natural History

| taxon = Pristisomus

| authority = Woodward, 1890

| type_species = {{extinct}}Pristisomus gracilis

| type_species_authority = Woodward, 1890

| subdivision_ranks = Other species

| subdivision = *{{extinct}}P. latus Woodward, 1890

• {{extinct}}P. crassus Woodward, 1890

}}

Pristisomus is an extinct genus of prehistoric bony fish that lived during the Anisian age (Middle Triassic epoch) in what is now New South Wales, Australia. Fossils are derived from the Sydney sandstone.{{cite journal |last=Wade |first=Robert T. |year=1939 |title=The Triassic fishes of Gosford, New South Wales |journal=Journal and Proceedings of the Royal Society of New South Wales |volume=73 |issue=4 |pages=206–217|doi=10.5962/p.360274 |s2cid=259736659 |doi-access=free }}