^Murchison, R. I. (29 december 1835). ”On the Silurian System of rocks”. The London and Edinburgh Philosophical Magazine and Journal of Science "7": ss. 46–52.
^Murchison, R. I. (29 december 1835). ”On the Silurian and Cambrian Systems”. Report of the meeting of the British Association for the Advancement of Science: ss. 59–61.