Palaeodus Explained

Palaeodus is an extinct genus of thelodont agnathan that lived during the Lower Ordovician period near present-day Saint Petersburg, Russia.^[1]

Notes and References

1. Rohon, J. V. 1890. tber unter-silurische Fische. Akad. Nauk S. S. S. R., Leningrad: Moscow. Bull. (4)1:269-278.