Results 241 to 250 of about 98,208 (293)

Cretaceous

2018
The Cretaceous evolution of sedimentary basins in Central Europe was influenced by the interplay of two main processes: plate tectonics and eustatic sea-level change. Global plate-tectonic reconfiguration resulted in the widening of the Central Atlantic, the opening of the Bay of Biscay, and the opening of the South Atlantic Ocean causing a counter ...
Voigt, S.   +15 more
  +8 more sources

An Early Cretaceous pellet

Nature, 2001
Peer ...
Sanz, José Luis   +6 more
openaire   +3 more sources

Cretaceous Dinosaur Extinction

Evolution, 1968
The reign of dinosaurs, dominant on land for about 150 million years, terminated at the close of the Cretaceous. They did not all disappear at precisely the same moment, but from a peak of about 120 genera near the middle of the period, dwindled in numbers down to the end of Cretaceous at which time a large number of genera became extinct (Newell, 1962;
Daniel I, Axelrod, Harry P, Bailey
openaire   +2 more sources

Cretaceous

Geological Society, London, Memoirs, 1992
Abstract Early Cretaceous The Cretaceous Period lasted for about 70 million years. During this time there was a major change in the sedimentary history of the area as tectonism died down and deposition started of an extensive blanket of coccolith ooze: the Chalk.
J. M. Hancock, P. F. Rawson
openaire   +1 more source

Late Cretaceous and paroxysmal Cretaceous/Tertiary extinctions

Nature, 1987
The various geological signatures at Cretaceous/ Tertiary time including iridium and other associated elements, microspherules, and shock deformation features are compatible with the suggestion that the transition is marked by a period of intense volcanism.
Charles B. Officer   +3 more
openaire   +2 more sources

Cretaceous Bivalve Larvae

Science, 1978
Exceptionally well preserved larval bivalve shells have been isolated from Late Cretaceous (Maestrichtian) sediments. Specimens were readily identified to familial level on the basis of gross morphology and hinge structures. Reconstruction of fossil larval ontogeny, linked with the distribution of adult stages, will provide an important interpretative ...
R A, Lutz, D, Jablonski
openaire   +2 more sources

The Cretaceous-Tertiary Transition

Science, 1983
The fossil sequences from cores across the Cretaceous-Tertiary boundary show a range of transition times and transition time intervals depending on the fossil indicators and the location of the site. These variations, together with the pattern of iridium distribution with depth at some sites, differences in total amounts of iridium, variations in noble
C B, Officer, C L, Drake
openaire   +2 more sources

Cretaceous

1994
Abstract Pangaea experienced further disintegration during the Cretaceous. The main body of Laurasia approached its modem location but the Eurasian part deviated remarkably south-westward, forming an angle of several tens of degrees with modem latitudes.
Liu Benpei, Xu Yuling,, Chen Feng
openaire   +1 more source

Bornaviruses from the Cretaceous

Nature Reviews Microbiology, 2021
Analysis of endogenous viral elements reveals that bornaviruses already infected hosts 100 million years ago.
openaire   +2 more sources

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