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Ammonites from the Maastrichtian (Upper Cretaceous) Quiriquina Formation in central Chile
The Quiriquina Formation in central Chile is famous for its abundant and diverse ammonite assemblages of Maastrichtian age. In the type locality around the Concepcion Bay in the Bio-Bio Region ofExpand
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An ichthyosaurian forefin from the Lower Cretaceous Zapata Formation of southern Chile: implications for morphological variability within Platypterygius
Expeditions to the Tyndall Glacier (Torres del Paine National Park, South Chile) in 2009 and 2010 recovered an articulated ichthyosaurian forefin that displayed traits consistent with Platypterygius.Expand
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The Last Cretaceous Ammonites in Latin America
Sections yielding late Maastrichtian ammonite assemblages are rare in Latin America and precise biostratigraphic correlation with European type sections remains difficult. In all, the extinctionExpand
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Palaeoredox conditions and sequence stratigraphy of the Cretaceous storm-dominated, mixed siliciclastic-carbonate ramp in the Eastern Cordillera Basin (Colombia): Evidence from sedimentary
Abstract The Cretaceous black shales of Colombia are among the most important successions in the north of South America and have attracted the attention of many geoscientists and explorationExpand
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Assessing Interparticle Spatial Characteristics of DNA-Linked Core–Shell Nanoparticles with or without Magnetic Cores in Surface Enhanced Raman Scattering
Surface-enhanced Raman scattering (SERS) of plasmonic nanoparticles enables their use as nanoprobes for the detection of biomolecules in solutions, which exploits the “hot-spot” arisen from smallExpand
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STM Study of Au(111) Surface-Grafted Paramagnetic Macrocyclic Complexes [Ni2L(Hmba)](+) via Ambidentate Coligands.
Molecular anchoring and electronic properties of macrocyclic complexes fixed on gold surfaces have been investigated mainly by using scanning tunnelling microscopy (STM) and complemented with X-rayExpand
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Interleukin 33/ST2 Axis Components Are Associated to Desmoplasia, a Metastasis-Related Factor in Colorectal Cancer
In colorectal cancer (CRC), cancer-associated fibroblasts (CAFs) are the most abundant component from the tumor microenvironment (TM). CAFs facilitate tumor progression by inducing angiogenesis,Expand
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Tithonian–Berriasian ammonites from the Baños del Flaco Formation, central Chile
The Baños del Flaco Formation in central Chile contains abundant and well-preserved Tithonian (Late Jurassic) and scarce Berriasian (Early Cretaceous) ammonites. At Rio Maitenes in Curicó Province anExpand
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A mosasaur, cf. Plotosaurus, from the upper Maastrichtian Quiriquina Formation in Central Chile
Abstract Here we describe a mosasaurid from the upper Maastrichtian Quiriquina Formation near the town of Cocholgue about 30 km north of Concepcion, central Chile. The specimen comprises a concretionExpand
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Biostratigraphy and bioevents during the Tithonian – Hauterivian of central Chile
Ammonites of the Lo Valdes Formation were collected from sections at Lo Valdes, Cajon del Maipo and at Cruz de Piedra. A total of 1206 ammonites were collected in the Lo Valdes Formation (LV, CM andExpand