Results 201 to 210 of about 26,862 (257)

Past aridity and dust drove biodiversity crises and altered pollination in the ancient gymnosperm Ephedra (Gnetales). [PDF]

open access: yesBiol Rev Camb Philos Soc
Barbolini N   +9 more
europepmc   +1 more source
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The American Oligocene

Nature, 1960
FOLLOWING from Dr. R. M. Stainforth's comments on our communication, we would direct attention to the fact that it contained merely some of the conclusions reached in our study of “Mid-Tertiary Stratigraphical Palaeontology”, which will be published as an entire, illustrated book, and it is obvious that we could not give the full background in such a ...
F. E. EAMES   +3 more
openaire   +2 more sources

Oligocene climate dynamics [PDF]

open access: yesPaleoceanography, 2004
A planktonic and benthic foraminiferal stable isotope stratigraphy of the Oligocene equatorial Pacific (Ocean Drilling Program, Site 1218) was generated at 6 kyr resolution between magnetochrons C9n and C11n.2n (∼26.4–30 Ma on a newly developed astronomically calibrated timescale).
Bridget Wade, Heiko Pälike
exaly   +4 more sources

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