Authors Year Title
Brandon et al. & Hodson 1984 The stratigraphy and palaeontology of the Late Visean and Early Namurian rocks of north-east Connought.
The Geological Survey of Ireland, Special Paper, 6: 1-54, fig.1-14, tab.1-5, 1map; Dublin.
Brandon et al., Riley & Wilson 1995 Three new early Namurian (E1c-E2a) marine bands in central and northern England, UK, and their bearing on correlations with the Askrigg Block
Proceedings of the Yorkshire Geological Society December 1995, v. 50:333-355. Leeds