Prioniodus elegans is from the Ordovician of Baltoscandia.[2]
References
^Monographie der fossilen fische des silurischen systems des Russisch-baltischen gouvernements. CH Pander, 1856
^ abOn Pander's Ordovician conodonts: distribution and significance of the Prioniodus elegans fauna in Baltoscandia. SM Bergström, Senckenbergiana lethaea, 1988
^The 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 (Stable URL)