A5083529348- Crustacean biology and ecology
- Geological and Tectonic Studies in Latin America
- Paleontology and Stratigraphy of Fossils
- Astro and Planetary Science
- Geology and Paleoclimatology Research
- Marine Biology and Ecology Research
- Geological and Geochemical Analysis
- Planetary Science and Exploration
- Fish biology, ecology, and behavior
- Archaeological and Geological Studies
- Mollusks and Parasites Studies
- Archaeological and Historical Studies
- Coral and Marine Ecosystems Studies
- Ichthyology and Marine Biology
- Mining Techniques and Economics
- Botany and Geology in Latin America and Caribbean
- Data-Driven Disease Surveillance
- Isotope Analysis in Ecology
- Metallurgy and Cultural Artifacts
- Cephalopods and Marine Biology
- 3D Surveying and Cultural Heritage
- Reservoir Engineering and Simulation Methods
- Geological Modeling and Analysis
- Marine and fisheries research
- Oil and Gas Production Techniques
Montclair State University
2023-2025
Universidad Nacional de Colombia
2025
Arroyo Grande Community Hospital
2018
Universidad Nacional Autónoma de México
2017
Stuttgart Observatory
2013
Universidad Independiente
2010
University of Caldas
2010
Colombian Geological Survey
2008
Temperatures in tropical regions are estimated to have increased by 3° 5°C, compared with Late Paleocene values, during the Paleocene-Eocene Thermal Maximum (PETM, 56.3 million years ago) event. We investigated forest response this rapid warming evaluating palynological record of three stratigraphic sections eastern Colombia and western Venezuela. observed a distinct increase plant diversity origination rates, set new taxa, mostly angiosperms, added existing stock low-diversity flora. There...
Research Article| April 26, 2018 Multi-proxy record of the Chicxulub impact at Cretaceous-Paleogene boundary from Gorgonilla Island, Colombia Paul R. Renne; Renne 1Berkeley Geochronology Center, Berkeley, California 94709, USA2Department Earth and Planetary Science, University California, USA Search for other works by this author on: GSW Google Scholar Ignacio Arenillas; Arenillas 3Departamento de Ciencias la Tierra, Instituto Universitario Investigación en Ambientales Aragón, Universidad...
Abstract The Chicxulub impact on the Yucatán Peninsula at Cretaceous‐Paleogene boundary (KPB) was a likely contributor to end‐Cretaceous mass extinction. Glassy objects produced by quenched melt from were distributed over large region centered Caribbean basin and have long been known preserve compositional information that could allow for more robust constraints pre‐impact target lithologies. Chicxulub‐derived glasses are generally altered in most localities, but recently discovered deposit...
Abstract The discovery of a new Cretaceous/Palaeogene (K/Pg) bathyal marine sequence on Gorgonilla Island, SW Colombia, extends the presence Chicxulub impact spherule deposits to Pacific region northern South America and Eastern Ocean. layer is approximately 20 mm thick consists extraordinarily well‐preserved glass spherules up 1.1 in diameter. About 70–90% are vitrified, their chemical composition consistent with Haiti (Beloc) spherules. Normal size‐grading, delicate textures, welded melt...
The oldest record of the brachyuran Diaulax Bell, 1863 is based on description rosablanca n. sp.from middle part Rosablanca Formation (Early Cretaceous, early Valanginian, Department Santander, Colombia).This also for fossil crustaceans from Colombia.The new species represented by numerous specimens showing ontogenic variation in size and shape, with adults becoming larger wider at anterior portion carapace.Differences other five genus are subtle but sufficient to erect a species.The...
Abundant concretions at two localities in central Colombia where the San Gil Inferior and Superior formations are exposed, have yielded numerous crustacean individuals, comprising one new genus Rathbunassa n. gen.(Callianassidae), species Joeranina colombiana sp., Planocarcinus johnjagti three further species.The following taxa recorded: ?Paraxiopsis sp.(Axiidae), aquilae (rAtHBun, 1935) comb.(Callianassidae), kerri (Luque, FeLdmAnn, SCHweitzer, JArAmiLLo & CAmeron, 2012) comb.,...
Occurrence of the mecochirid decapod Meyeria magna M'Coy 1849 is documented based on numerous articulated specimens collected from upper Aptian strata Colombia.This report represents fi rst record in America for species, previously reported deposits Europe.The a relatively uniform size found single stratigraphic level suggests mass mortality event, favorable conditions development community, or both.The range genus confi rmed to be Lower Upper Cretaceous.
RESUMENSe reporta una diversa y abundante asociación de crustáceos decápodos del Neógeno (Mioceno al Plioceno) las formaciones Las Perdices Tubará en el Cinturón Plegado San Jacinto (Caribe colombiano).En sedimentos marinos parálicos, fueron encontrados ejemplares especies:
A new species of the brachyuran Ophthalmoplax is documented based upon two specimens collected from shales Lodolitas de Aguacaliente Formation, Guadalupe Group, (Cordillera Oriental, Colombian Andes), which represents a regional transgressive event.The small crustaceans were found in uppermost parasequences with retrogradational stacking pattern, near to maximum flooding surface (MFS), at end late Campanian Transgressive Systems Tract (TST).This oldest record for America.Morphological...