Pterospathodus


Pterospathodus is an extinct genus of conodont from the Silurian period.

Use in stratigraphy

The Telychian of Estonia can be defined by five conodont zones.
The Sheinwoodian is defined between the acritarch biozone 5 and the last appearance of Pterospathodus amorphognathoides. The global boundary stratotype point is in Hughley Brook in Apedale, U.K.