Polyosteorhynchus

{{Short description|Extinct genus of coelacanths}}

{{Automatic taxobox

| fossil_range = Carboniferous

| taxon = Polyosteorhynchus

| authority = Lund & Lund, 1984

| type_species = Polyosteorhynchus simplex

| type_species_authority = Lund & Lund, 1984

}}

Polyosteorhynchus is an extinct genus of coelacanths which lived during the Carboniferous period (Serpukhovian stage, about 318 - 326 million years ago). The size of Polyosteorhynchus was about 3,5 – 19 cm long.