Subject ASC00012an
The Quarterly journal of the Geological Society of London.
v.67 (1911), Page 231 (1845)
Smithsonian Libraries
BHL Page 39749061
Keywords
Table Graptolites Salopian Rocks of Wales Welsh Borderland Cautley Ravenstondale graptolites Salopian rocks Wales Ravenstonedale distribution of Grapolites Graptolites Salopian Rocks