This genus had a long temporal range, surviving from the middle Ordovician to late Devonian.

[2] This fossil revealed that at least P. unicostatus had a thicker body then most other conodonts, and had more primitive shark-like teeth.

These features suggest P. unicostatus was a macrophagous hunter, something rare in vertebrates from the Ordovician-Silurian (due to the fact that many of them had no jaws).

[8] Conodonts are classed in the grouping Agnatha alongside jawless fish like lampreys and hagfish.

[9] Conodonts such as Panderodus were typically small to medium sized, elongate, marine vertebrates that look similar to eels today.