d'Souza, D.G. & Rana, K. & Milley, K.M. & Maclean, H.E. & Zajac, J.D. & Bell, J. & Brenner, S. & Venkatesh, B. & Richardson, S.J. & Danks, J.A. (2013)
Expression of Wnt signaling skeletal development genes in the cartilaginous fish, elephant shark (Callorhinchus milii). General and Comparative Endocrinology, 193, 1–9
DOI: 10.1016/j.ygcen.2013.06.021

Danks, J.A. & d'Souza, D.G. & Gunn, H.J. & Milley, K.M. & Richardson, S.J. (2011)
Evolution of the parathyroid hormone gene family and skeletal formation pathways. General and Comparative Endocrinology, 170(1), 79–91
DOI: 10.1016/j.ygcen.2010.10.023

Liu, Y. & Ibrahim, A.S. & Tay, B.-H. & Richardson, S.J. & Bell, J. & Walker, T.I. & Brenner, S. & Venkatesh, B. & Danks, J.A. (2010)
Parathyroid hormone gene family in a cartilaginous fish, the elephant shark (Callorhinchus milii). Journal of Bone and Mineral Research, 25(12), 2337–2347
DOI: 10.1002/jbmr.178