On a Hybodont Shark ( Tristychius ) from the Calciferous Sandstone Series of Eskdale (Dumfries-Shire)
- 1 March 1924
- journal article
- Published by Geological Society of London in Quarterly Journal of the Geological Society
- Vol. 80 (1-4), 338-342
- https://doi.org/10.1144/gsl.jgs.1924.080.01-04.17