The Silurian system, founded on geological researches in the counties of Salop, Hereford, Radnor, Montgomery, Caermarthen, Brecon, Pembroke, Monmouth, Gloucester, Worcester, and Stafford v.2 (1839)
Murchison, Roderick Impey, Sir; Day & Haghe,
John Murray, Albemarle Street, 1839
Part of: The Silurian system, founded on geological researches in the counties of Salop, Hereford, Radnor, Montgomery, Caermarthen, Brecon, Pembroke, Monmouth,
John Murray, Albemarle Street, 1839
Part of: The Silurian system, founded on geological researches in the counties of Salop, Hereford, Radnor, Montgomery, Caermarthen, Brecon, Pembroke, Monmouth,
97. Silurian and Devonian
Murchison's study of Welsh stratigraphy resulted in this work, in which he
established a coherent grouping of geological formations found elsewhere into
one system, which he named the Silurian system (after a local Welsh tribe).
His Silurian sytem was eventually split up into three geolgical periods: the
Cambrian, Ordovician, and Silurian periods.
