Results 151 to 160 of about 2,661 (202)

First report of a nearly complete comatulid crinoid (Comatulida, Echinodermata) from the Cretaceous of Australia. [PDF]

Sci Rep
Salamon MA, Kapitany T, Płachno BJ.
europepmc   +1 more source

The Kimmeridgian (?) : early valanginian tectonic event on the peruvian margin

, 1990
Batty, M., Carlotto, V., Jacay, J., Jaillard, Etienne   +3 more
openaire   +1 more source

Climatic niche conservatism shapes the macroevolution, extinction, and survivorship of crocodile-line archosaurs. [PDF]

Sci Adv
Chiarenza AA, Howard AFC, Varnham GL, Farnsworth A, Valdes PJ, Mannion PD.   +5 more
europepmc   +1 more source

A new megaraptoran dinosaur from the Lower Cretaceous Wessex Formation, UK, and its implications for theropod evolution and biogeography. [PDF]

R Soc Open Sci
Morrison C, Scherer CR, Mannion P, Porro LB, Clark B, Folkes DD, Barrett PM.   +6 more
europepmc   +1 more source

The Valanginian Positive Carbon Isotope Event in Arctic Russia: Evidence From Terrestrial and Marine Isotope Records and Implications for Global Carbon Cycling [PDF]

Cretaceous Research, 2010
The data presented here comprise Ryazanian–Valanginian carbon isotope ratios analyzed from fossil wood and belemnites from the shallow marine Boyarka River succession in Siberia. Additional belemnite carbon isotope ratios from the Izhma River succession (
Gregory D. Price, Malcolm B. Hart, Melanie J. Leng   +2 more
exaly   +2 more sources

The Upper Valanginian (Early Cretaceous) Positive Carbon–Isotope Event Recorded in Terrestrial Plants

Earth and Planetary Science Letters, 2005
Our understanding of the ancient ocean-atmosphere system has focused on oceanic proxies. However, the study of terrestrial proxies is equally necessary to constrain our understanding of ancient climates and linkages between the terrestrial and oceanic ...
Gregory D. Price, Darren R. Gröcke, Jorg Mutterlose   +2 more
exaly   +2 more sources

Sea-Level Reconstructions From the Peri-Vocontian Zone (South-East France) Point to Valanginian Glacio-Eustasy

Sedimentology, 2010
International audienceThe Valanginian is a period of global environmental change as illustrated by sedimentary, palaeontological, geochemical and climatic perturbations. A production crisis in most of the carbonate platforms suggests important changes in
Bernard Pittet, Benjamin Greselle
exaly   +2 more sources

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The Lower Cretaceous (Berriasian and Valanginian) in NW Germany

Cretaceous Research, 1996
Abstract The non-marine sedimentary successions of the Berriasian and lower Valanginian of NW Germany are described. The stratigraphical distribution of ostracods allow this interval to be subdivided into 10 biozones, which can be used for regional correlation in the central part of the NW German Basin.
Jorg Mutterlose
exaly   +2 more sources

Bathonian and Valanginian fossils from Honduras

Geobios, 1993
Abstract The Agua Fria Formation of Honduras, Chortis Block, consists approximately of 200 or more meters of beds of gray, quartzose sandstone alternating with beds of gray and/or black shale. From this formation Mark Gordon has collected Choffatia s.l. sp. juv. (or a leptosphinctine) and Iniskinites (?) cf. andinus ( Burckhardt 1903).
Mark Gordon, Keith Young
openaire   +1 more source

Berriasian and Early Valanginian Environmental Change Along a Transect From the Jura Platform to the Vocontian Basin

Sedimentology, 2013
International audienceValanginian sedimentary archives display a positive anomaly in the carbon-isotope record which is associated with a crisis in neritic and pelagic carbonate production.
Jorge E Spangenberg, Adatte Thierry, Karl B. Föllmi   +2 more
exaly   +2 more sources