Upper Tremadoc–Lower Arenig? Anisograptid–Dichograptid fauna from the Cabitza Formation (Lower Ordovician, SW Sardinia, Italy)

Descriptions of the Graptolites of the Arenig and Llandeilo Rocks of St. David's

John Hopkinson, Charles Lapworth · Quarterly Journal of the Geological Society · 1875 · 130 citations

Natural Sciences, Earth Sciences, Geology +5

Carbon‐isotope analyses of fossil plants as a chemostratigraphic and palaeoenvironmental tool

Darren R. Gröcke · Lethaia · 1998 · 119 citations · Full text

Natural Sciences, Botany, Paleoclimatology +14

Ecostratigraphy, zonation and global correlation of earliest Ordovician planktic graptolites

Roger A. Cooper · Lethaia · 1999 · 85 citations

Natural Sciences, Earth Sciences, Paleontology +7

The age of the Watch Hill Grits (Ordovician), English Lake District: structural and palaeogeographical implications

Stewart G. Molyneux, A. W. A. Rushton · Transactions of the Royal Society of Edinburgh Earth Sciences · 1988 · 70 citations

Natural Sciences, Earth Sciences, Paleobotany +5

The Sequence of the Cambrian and Associated Beds of the Malvern Hills

Theodore Groom · Quarterly Journal of the Geological Society · 1902 · 67 citations

Natural Sciences, Earth Sciences, Geology +11