Results 41 to 50 of about 345,840 (384)

Pararhabdodon Isonensis and Tsintaosaurus Spinorhinus: A New Clade of Lambeosaurine Hadrosaurids from Eurasia [PDF]

open access: yes, 2009
We present new anatomical information showing that Koutalisaurus kohlerorum, from the Maastrichtian of Lleida Province, northeastern Spain, is most probably the junior synonym of Pararhabdodon isonensis from the same region.
Prieto-Marquez, Aalbert   +1 more
core   +1 more source

The Late- Cretaceous volcanic rocks from Talesh area (western Alborz): chemical variation, crystallization condition, hygrometry and tectonic setting [PDF]

open access: yesپترولوژی, 2020
In the Talesh area (western Alborz), a thick sedimentary- volcanic association formed in a littoral- deltaic environment during the Late Cretaceous. The extrusives comprise volcanoclastics (tuffs), lava flows (pillow and massive) and basic dykes.
Khadijeh Amani   +3 more
doaj   +1 more source

On the Cretaceous Dentaliidæ [PDF]

open access: yesQuarterly Journal of the Geological Society of London, 1878
I n this paper are described and grouped the shells of the family Dentaliidæ which have been obtained from the Cretaceous rocks of Great Britain. It includes all the forms I know of; but there may be in local museums and private collections specimens I have not seen. In the genus
openaire   +3 more sources

Petrography and diagenetic history of the Shurijeh Formation (Late Kimmeridgian–Hautrivian) at Estarkhi section, Kopet-Dagh Basin, NE Iran [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2021
The Shurijeh Formation is a Late Jurassic–Early Cretaceous (Late Kimmeridgian–Hauterivian) siliciclastic rock unit of the Kopet-Dagh Basin, up to 392 m thick.
Mehdi Reza Poursoltani
doaj   +1 more source

Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns [PDF]

open access: yes, 2016
publisher: Elsevier articletitle: Burmese amber fossils bridge the gap in the Cretaceous record of polypod ferns journaltitle: Perspectives in Plant Ecology, Evolution and Systematics articlelink: http://dx.doi.org/10.1016/j.ppees.2016.01.003 ...
Alexander R. Schmidt   +75 more
core   +1 more source

New material of the trechnotherian mammal Lactodens from the Early Cretaceous Jehol Biota: Comparison with Origolestes and implications for mammal evolution [PDF]

open access: yesActa Palaeontologica Polonica, 2022
A new specimen of Lactodens sheni, the only known spalacolestine from the Early Cretaceous Jehol Biota, is reported from the Jiufotang Formation, Liaoning, China.
FANGYUAN MAO, CUNYU LIU, JIN MENG
doaj   +1 more source

An Early Cretaceous pellet

open access: yesNature, 2001
Peer ...
Sanz, José Luis   +6 more
openaire   +4 more sources

The Cretaceous Epoch [PDF]

open access: yesNature, 1870
THE President of the Linnean Society having been good enough to credit me, in the interesting address which has just appeared in NATURE, with the doctrine that the formation of chalk has been going on continuously over some part of the North Atlantic sea-bed from the Cretaceous epoch to the present time, I feel it due to my friend and colleague, Prof ...
openaire   +3 more sources

Late Maastrichtian carbon isotope stratigraphy and cyclostratigraphy of the Newfoundland Margin (Site U1403, IODP Expedition 342) [PDF]

open access: yes, 2018
Earth’s climate during the Maastrichtian (latest Cretaceous) was punctuated by brief warming and cooling episodes, accompanied by perturbations of the global carbon cycle.
Agnini, Claudia   +38 more
core   +2 more sources

Does large igneous province volcanism always perturb the mercury cycle? Comparing the records of Oceanic Anoxic Event 2 and the end-Cretaceous to other Mesozoic events

open access: yesAmerican Journal of Science, 2018
Mercury (Hg) is increasingly being used as a sedimentary tracer of Large Igneous Province (LIP) volcanism, and supports hypotheses of a coincidence between the formation of several LIPs and episodes of mass extinction and major environmental perturbation.
L. Percival   +10 more
semanticscholar   +1 more source

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