Briggs, D. E. G., Siveter, D. J., Siveter, D. J., Sutton, M. D., Garwood, R. J., & Legg, D. (2012). Silurian horseshoe crab illuminates the evolution of arthropod limbs. National Academy of Sciences.

Briggs, Derek E. G., Derek J. Siveter, David J. Siveter, Mark D. Sutton, Russell J. Garwood, and David Legg. Silurian Horseshoe Crab Illuminates the Evolution of Arthropod Limbs. National Academy of Sciences, 2012.

Briggs, Derek E. G., et al. Silurian Horseshoe Crab Illuminates the Evolution of Arthropod Limbs. National Academy of Sciences, 2012.