On Bolopora undosa gen. et sp. nov.: a Rock-building Bryozoan with Phosphatized Skeleton, from the Basal Arenig Rocks of Ffestiniog, (North Wales)
- 1 March 1926
- journal article
- Published by Geological Society of London in Quarterly Journal of the Geological Society
- Vol. 82 (1-4), 411-423
- https://doi.org/10.1144/gsl.jgs.1926.082.01-04.24