Ptychodictyon Gross, 1973

Selection of related publications
Pinakhina, D. V. & Märss, T. 2018. The Middle Devonian acanthodian assemblage of the Karksi outcrop in Estonia. Estonian Journal of Earth Sciences 61, 1, 96–111 . DOI:10.3176/earth.2018.07
Märss, T., Kleesment, A., & Niit, M. 2008. Karksilepis parva gen. et sp. nov. (Chondrichthyes) from the Burtnieki Regional Stage, Middle Devonian of Estonia. Estonian Journal of Earth Sciences 57, 4, 219-230. DOI:10.3176/earth.2008.4.02
Niit, M. 2004. Applicability of microfossils of the Burtnieki Stage in stratigraphy. bakalaureusetöö, pp. .
Valiukevičius, J. & Karatajūtė-Talimaa, V. 1986. Complex scales acanthodii from the base of the Middle Devonian Baltic States and Belarus. Biofacies and fauna of the Silurian and Devonian basins of the Baltic. Ed: Brangulis, A., pp. 110-122.
Valiukevičius, J. J. 1985. Acanthodians from the Narva Regional Stage of the Main Devonian Field.