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