Results 191 to 200 of about 92,675 (274)

Ordovician graptolites of North-west Nelson: Recent discoveries in the Aorangi Mine area [PDF]

, 1961
S. K. Skwarko
openalex   +1 more source

Carbonate rocks of Cambrian and Ordovician age, Northampton and Bucks Counties, eastern Pennsylvania, and Warren and Hunterdon Counties, western New Jersey [PDF]

, 1965
Avery Ala Drake
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Greenhouse−icehouse transition in the Late Ordovician marks a step change in extinction regime in the marine plankton

Proceedings of the National Academy of Sciences of the United States of America, 2016
J. Crampton, R. Cooper, P. Sadler, M. Foote   +3 more
semanticscholar   +1 more source

Ordovician and Silurian stratigraphy of the southern Rocky Mountains

, 1969
B S Norford
openalex   +1 more source

Middle Ordovician Black River Ostracods from Michigan Part II, Levisulculus and Eurychilina [PDF]

, 1960
R. V. Kesling
openalex  

Glauconite in the Cambrian-Ordovician Bliss Formation near Silver City, New Mexico [PDF]

, 1962
D. W. Lewis
openalex   +1 more source

Phylogeny and morphologic evolution of the Ordovician Camerata (Class Crinoidea, Phylum Echinodermata)

Journal of Paleontology, 2017
Selina R. Cole
semanticscholar   +1 more source

Oceanography in the Ordovician

, 1991
openaire   +1 more source

Illustrations of Canadian Fossils, Cambrian, Ordovician and Silurian of the western Cordillera

, 1962
B S Norford
openalex   +1 more source

Reconnaissance of the Ordovician and Silurian rocks of northern Yukon Territory

, 1964
B S Norford
openalex   +1 more source