Scheel D.M., Slater G.J., Kolokotronis SO., Potter C.W., Rotstein D.S., Tsangaras K., Greenwood, A.D. and Helgen, K.M.. Biogeography and taxonomy of extinct and endangered monk seals illuminated by ancient DNA and skull morphology. ZooKeys. Schultz, J.K., Baker, J.D., Toonen, R.J. and Bowen, B.W..