Prioniodus

{{Short description|Extinct genus of jawless fishes}}

{{Automatic taxobox

| fossil_range = {{fossil range|Ordovician|Carboniferous}}

| display_parents = 2

| taxon = Prioniodus

| authority = Pander 1856Monographie der fossilen fische des silurischen systems des Russisch-baltischen gouvernements. CH Pander, 1856

| subdivision_ranks = Species

| subdivision = * †Prioniodus altodus Harlton 1933

• †Prioniodus antiquus Zhen et al. 2023
• †Prioniodus cacti Gunnell 1933
• †Prioniodus dactylodus Gunnell 1933
• †Prioniodus elegans Miller 1889 (type)
• †Prioniodus galesburgensis Gunnell 1933

| synonyms =

}}

Prioniodus is an extinct genus of conodonts in the family Balognathidae from the Ordovician.On Pander's Ordovician conodonts: distribution and significance of the Prioniodus elegans fauna in Baltoscandia. SM Bergström, Senckenbergiana lethaea, 1988The Conodont Genus Prioniodus and Related Forms. F. H. T. Rhodes and Klaus J. Müller, Journal of Paleontology, Vol. 30, No. 3 (May, 1956), pages 695-699 ([https://www.jstor.org/stable/1300300 Stable URL])

Prioniodus elegans is from the Ordovician of Baltoscandia.