Results 291 to 300 of about 211,638 (344)

Response—Cretaceous Extinctions

Science, 2010
The Letters by Archibald et al. , Keller et al. , and Courtillot and Fluteau question our conclusion that the Cretaceous-Paleogene mass extinction was caused by the asteroid impact at Chicxulub.
Schulte, Peter, Alegret, Laia, Arenillas, Ignacio, A. Arz, José, J. Barton, Penny, R. Bown, Paul, J. Bralower, Timothy, L. Christeson, Gail, Claeys, Philippe, S. Cockell, Charles, S. Collins, Gareth, Deutsch, Alexander, J. Goldin, Tamara, Goto, Kazuhisa, M. Grajales-Nishimura, José, A. F. Grieve, Richard, P. S. Gulick, Sean, R. Johnson, Kirk, Kiessling, Wolfgang, Koeberl, Christian, A. Kring, David, G. Macleod, Kenneth, Matsui, Takafumi, Melosh, Jay, Montanari, Alessandro, V. Morgan, Joanna, R. Neal, Clive, D. Norris, Richard, Pierazzo, Elisabetta, Ravizza, Greg, Rebolledo-Vieyra, Mario, Uwe Reimold, Wolf, Robin, Eric, Salge, Tobias, P. Speijer, Robert, R. Sweet, Arthur, Urrutia-Fucugauchi, Jaime, Vajda, Vivi, T. Whalen, Michael, S. Willumsen, Pi   +39 more
openaire   +2 more sources

Lower Cretaceous Fleas

Nature, 1970
Two fleas have been collected in association with abundant remains of fish, plants, phyllopod Crustacea (Conchostraca, Anostraca and Cladocera) and other insects in a Lower Cretaceous siltstone at Koonwarra, southern Gippsland, Australia. The insect fauna consists mainly of the aquatic immature stages of Ephemeroptera (mayflies), Diptera (midges ...
openaire   +2 more sources

Cretaceous collegiality

Molecular Immunology, 2015
Laurence C, Eisenlohr, Lisa K, Denzin
openaire   +2 more sources

Extraterrestrial Cause for the Cretaceous-Tertiary Extinction

Science, 1980
L. W. Alvarez, W. Álvarez, F. Asaro, H. Michel   +3 more
semanticscholar   +1 more source

Lepidoptera in Cretaceous Amber

Science, 1970
The discovery of the head capsule of a lepidopterous larva in Canadian amber of the Cretaceous period is the first fossil evidence of Lepidoptera before the Tertiary period.
openaire   +2 more sources

Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic

, 1995
S. Cande, D. Kent
semanticscholar   +1 more source

The Cretaceous Layers Later than the Early Cretaceous

2018
The marine continuity after the Early Cretaceous implies an essential difference with the condition in the orogenic belt with a N-S trend of the Patagonian Cordillera, and it could be said, in a figurative sense, that the continent has kept its feet in the ocean.
openaire   +2 more sources

Cretaceous

2016
James G. Ogg, Gabi M. Ogg, Felix M. Gradstein   +2 more
openaire   +2 more sources

Impacts of the Cretaceous Terrestrial Revolution and KPg Extinction on Mammal Diversification

Science, 2011
R. Meredith, J. Janecka, J. Gatesy, O. Ryder, C. Fisher, E. Teeling, Alisha M. Goodbla, E. Eizirik, Taiz L. L. Simão, T. Stadler, D. Rabosky, R. Honeycutt, J. J. Flynn, C. Ingram, C. Steiner, T. Williams, T. J. Robinson, Angela Burk-Herrick, M. Westerman, Nadia A. Ayoub, M. Springer, W. Murphy   +21 more
semanticscholar   +1 more source

Continental stretching: An explanation of the Post-Mid-Cretaceous subsidence of the central North Sea Basin

, 1980
J. Sclater, P. A. F. Christie
semanticscholar   +1 more source