Results 61 to 70 of about 7,153,299 (305)
A new troodontid theropod dinosaur from the lower Cretaceous of Utah. [PDF]
PLoS ONE, 2010 BackgroundThe theropod dinosaur family Troodontidae is known from the Upper Jurassic, Lower Cretaceous, and Upper Cretaceous of Asia and from the Upper Jurassic and Upper Cretaceous of North America.
Phil Senter +3 more
doaj +1 more source
Геодинамика и тектонофизика, 2021 We have investigated the tectonic and erosion features of the Upper Triassic (Mulussa F Formation) and Lower Cretaceous (Rutbah Formation) sediments in the Euphrates graben area and analysed their influence on changes in the thickness and zonal ...
I. Yousef +3 more
doaj +1 more source
First pterosaur remains from the Cretaceous of Poland [PDF]
, 2013 The first records of pterosaurs from the Cretaceous of Poland are reported, on the basis of fragmentary remains from the marine Upper Albian (Lower Cretaceous) of the Annopol Anticline, central Poland.
Machalski, Marcin, Martill, David M.
core
PLoS ONE, 2014 The fossil record for neoceratopsian (horned) dinosaurs in the Lower Cretaceous of North America primarily comprises isolated teeth and postcrania of limited taxonomic resolution, hampering previous efforts to reconstruct the early evolution of this ...
A. Farke +4 more
semanticscholar +1 more source
Georesursy, 2019 Unique Leningradsky and Rusanovsky gascondensate fields in the Barrem-Cenomanian layer are discovered in the Kara Sea. Non-industrial accumulations of oil and gas have been discovered in the Lower Cretaceous sediments of the western part of the Barents ...
A.V. Mordasova +4 more
doaj +1 more source
Response and Recovery of the Comanche Carbonate Platform Surrounding Multiple Cretaceous Oceanic Anoxic Events, Northern Gulf of Mexico [PDF]
, 2015 The ubiquity of carbonate platforms throughout the Cretaceous Period is recognized as a product of high eustatic sea-level and a distinct climatic optimum induced by rapid sea-floor spreading and elevated levels of atmospheric carbon-dioxide.
Da-Gama, Rui O.B.P. +5 more
core +1 more source
Sedimentation of the Lower Cretaceous Xiagou formation and Its Response to Regional Tectonics in the Qingxi Sag, Jiuquan Basin, NW China [PDF]
, 2014 Under the constraint of an isochronous sequence stratigraphic framework, sediment infill of the Xiagou Formation reflects the overall control of dynamic tectonic movements and episodic sedimentations in the Qingxi Sag.
Chen, Si +5 more
core +1 more source
PLoS ONE, 2014 Increased excavation of dinosaurs from China over the last two decades has enriched the record of Asian titanosauriform sauropods. However, the relationships of these sauropods remain contentious, and hinges on a few well-preserved taxa, such as ...
Li-Guo Li, Daqing Li, H. You, P. Dodson
semanticscholar +1 more source
Morphological Stasis of Protists in Lower Cretaceous Amber
Protist, 2008 Paleomicrobiological studies of terrestrial and freshwater protists are extremely rare in comparison with studies of eukaryotic microfossils from marine ecosystems. Using optical and electron microscopy (SEM-BSE) for hard substrates, we have examined protists trapped in Lower Cretaceous amber from Peñacerrada (Alava, Spain).
Martín González, Ana +4 more
openaire +3 more sources
BSGF - Earth Sciences Bulletin, 2023 Designing carbonate facies models requires the integration, correlation and conceptual interpretation of multiple geological data sets. Potential significant errors are sourced from uncertain stratigraphic correlations, speculative palaeoecological ...
Michel Julien +11 more
doaj +1 more source