Huxley, T.H. (1880)
A Manual of the Anatomy of Vertebrated Animals. D. Appleton & Company, New York, 431 pp.
Huxley, T.H. (1880)
On the application of the laws of evolution to the arrangement of the Vertebrata, and more particularly of the Mammalia. Proceedings of the Zoological Society of London, 1880, 649–662
Huxley, T.H. (1861)
Preliminary essay upon the systematic arrangment of the fishes of the Devonian Epoch. Memoirs of the Geological Survey of Great Britain, decade 10, 23, 1–40