Clarke, J.M., 1922. The Age of the Earth from the Paleontological Viewpoint. Proceedings of the American Philosophical Society 61, 272-282.

Clarke, J.M., 1919. Armstrongia: A New Genus of Devonian Glass Sponges, in: Clarke, J.M. (Ed.), Fifthteenth Report Of The Director Of The State Museum Science Department. The University of the State of New York, Albany, New York, pp. 143-146.

Clarke, J.M., 1901. Amnigenia as an Indicator of Freshwater Deposits during the Devonic of New York, Ireland and the Rhineland, in: Merrill, J.H., Clarke, J.M. (Eds.), Paleontologic Papers 2. The University of the State of New York, Albany, New York, pp. 199-204.