Polygnathacea

{{Short description|Extinct superfamily of jawless fish}}

{{Automatic taxobox

| image = Conodonts.jpg

| image_caption = {{hidden|10–11. Polygnathus sp.
(see caption)|10–14. Conodonts from the basal 20 cm of the Loyalhanna Limestone Member of the Mauch Chunk Formation, Keystone quarry, Pa. (93RS–79a), and Westernport, Md. (93RS–67). Note the highly abraded and reworked aeolian forms.
10. Polygnathus sp., Pa element, upper view, reworked Late Devonian to Early Mississippian morphotype, 93RS–79a, X140.
11. Polygnathus sp., Pa element, upper view, reworked Late Devonian to Early Mississippian morphotype, 93RS–67, X140.}}

| display_parents = 3

| taxon = Polygnathacea

| authority = Bassler, 1925Classification and stratigraphic use of the conodonts. RS Bassler - Geological Society of America Bulletin, 1925

| subdivision_ranks = Families

| subdivision =

• †Cavusgnathidae Clark et al., 1981
• †Palmatolepidae Müller, 1956
• †Polygnathidae Bassler, 1925

| synonyms =

}}

Polygnathacea is an extinct superfamily of conodonts.