Klug, C. & Kröger, B. & Kiessling, W. & Mullins, G.L. & Servais, T. & Frýda, J. & Korn, D. & Turner, S. (2010)
The Devonian ecological revolution, an underrated radiation. Lethaia, 43(4), 465–477
DOI: 10.1111/j.1502-3931.2009.00206.x

Kriwet, J. & Kiessling, W. & Klug, S. (2009)
Diversification trajectories and evolutionary life-history traits in early sharks and batoids. Proceedings of the Royal Society of London, Series B, 276, 945–951
DOI: 10.1098/rspb.2008.1441