Silurian acritarch distribution in the Ludlovian shelf Sea of South Wales and Welsh Borderland. (In: Microfossils from Recent and Fossil Shelf Seas. J.W.Neale and M.D. Brasier. editors)
Reference:
Dorning,K.J. (1981)
Silurian acritarch distribution in the Ludlovian shelf Sea of South Wales and Welsh Borderland. (In: Microfossils from Recent and Fossil Shelf Seas. J.W.Neale and M.D. Brasier. editors) Microfossils from recent and fossil Shelf Seas. (J.W.Neale and M.D. Brasier, editors). British Micropalaeontological Society Series
P. 31- 36