Tulenko, F.J. & Massey, J.L. & Holmquist, E. & Kigundu, G. & Thomas, S. & Smith, S.M.E. & Mazan, S. & Davis, M.C. (2017)
Fin-fold development in paddlefish and catshark and implications for the evolution of the autopod.
Proceedings of the Royal Society of London, Series B, 284(1855), Article 20162718 DOI: 10.1098/rspb.2016.2780