Karatajūtė-Talimaa, V.N. (1997)
Chondrichthyan scales from Lochkovian (Lower Devonian) of Podolia (Ukraine). Geologija, 22: 5-17
Wilson, M.V.H. & Hanke, G.F. & Soehn, K.L. (2000)
Diversity and age of the Devonian vertebrate assemblage at MOTH, Mackenzie Mountains, Northwest Territories, Canada. Ichthyolith Issues, Special Publication, 6, 137–141
Martínez-Pérez, C. & Dupret, V. & Manzanares, E. & Botella, H. (2010)
New data on the Lower Devonian chondrichthyan fauna from Celtiberia (Spain). Journal of Vertebrate Paleontology, 30(5), 1622–1627
DOI: 10.1080/02724634.2010.501451
Burrow, C.J. & Turner, S. (2018)
Stem chondrichthyan microfossils from the Lower Old Red Sandstone of the Welsh Borderland. Acta Geologica Polonica, 68(3), 321–334
DOI: 10.1515/agp-2018-0010