Authors Year Title
Bisat & Hudson 1943 The lower Reticuloceras (R1) goniatite succession in the Namurian of the North of England.
Proceedings of the Yorkshire Geological Society, 24 (6): 383-440, fig.1, pl.23-30; Wakefield.
Hudson & Turner 1933 Correlation of Dinantian and Namurian in Western Europe
Proceedings of the Leeds Philosophical and Literary Society. Scientific section, vol. II, Part X : 467-483. Leeds.
Hudson & Mitchell 1937 The Carboniferous geology of the Skipton anticline.
Summary of the Progress of the Geological Survey of Great Britain and the Museum of Practical Geology, 1935 (2): 1-45, fig.1-9, 1pl.; London.
Hudson 1941 The Mirk Fell Beds (Namurian, E2) of Tan Hill, Yorkshire.
Proceedings of the Yorkshire Geological Society, 24, 259-289,  6 fig.,
Hudson & Cotton 1943 The Lower Carboniferous in a boring at Alport, Derbyshire
Proceedings of the Yorkshire Geological Society, 25, 254-311,
Hudson 1944 The Carboniferous of the Broughton Anticline, Yorkshire.
Proceedings of the Yorkshire Geological Society, 25: 190-214, fig.1-2, pl.17; Wakefield.
Hudson & Cotton 1945 The Carboniferous rocks of the Edale Anticline, Derbyshire
The Quarterly Journal of the Geological Society of London, 101: 2–36.
Hudson 1945 The Goniatite Zones of The Namurian.
Geological Magazine, 82 (1): 1-9; London.
Hudson & Dunnington 1945 The Carboniferous rocks of the Swinden Anticline, Yorkshire, with a redefinition of the boundary between Tournaisian and Viséan in England.
Proceedings of the Geologists' Association, 55 (4): 195-215, fig.20-22, pl.10-11; London.
Hudson 1946 The Namurian goniatites Cravenoceratoides bisati Hudson and Ct. lirifer n.sp.
Proceedings of the Yorkshire Geological Society, 25 (6): 375-386, pl.21,21A; Wakefield.