A5057413819- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Marine Biology and Ecology Research
- Geological Studies and Exploration
- Geological and Geochemical Analysis
- Evolution and Paleontology Studies
- Geochemistry and Elemental Analysis
- Geological formations and processes
- Paleontology and Evolutionary Biology
- Geochemistry and Geologic Mapping
- Hydrocarbon exploration and reservoir analysis
- Geological Formations and Processes Exploration
- Geological and Geophysical Studies
- Marine and environmental studies
- Marine and coastal plant biology
- Cephalopods and Marine Biology
- Isotope Analysis in Ecology
- Pleistocene-Era Hominins and Archaeology
- Aquatic Invertebrate Ecology and Behavior
- Marine Bivalve and Aquaculture Studies
- Astro and Planetary Science
- Methane Hydrates and Related Phenomena
- Morphological variations and asymmetry
- Scientific Research and Discoveries
- Space Exploration and Technology
Durham University
2016-2025
ProMedica Toledo Hospital
2025
University of Toledo
2024-2025
National Museums Scotland
2025
Natural History Museum
2001-2024
Medica (United States)
2024
Lund University
2010-2023
University of Tartu
2023
China University of Geosciences
2016-2023
McLean Hospital
2022-2023
The Ordovician biodiversification has been recognized since the 1960s; term 'The Great Biodiversification Event', abbreviated by many as 'GOBE', used for past 20 years. conceptual development and terminology applied to this crucial episode in marine life signify its considerable complexity. GOBE includes successive biodiversity phases of pelagic benthic biotas, possibly decoupled. Put simply, can be seen a sequence diversifications planktonic (late Cambrian–Early Ordovician), level-bottom...
Abstract The Great Ordovician Biodiversification Event (GOBE) was the most rapid and sustained increase in marine Phanerozoic biodiversity. What generated this biotic response across Palaeozoic seascapes is a matter of debate; several intrinsic extrinsic drivers have been suggested. One climate, which recent years has undergone paradigm shift from text-book example an extended greenhouse to interval with transient cooling intervals – at least during Late Ordovician. Here, we show first...
Xu Chen , Jiayu Rong, Junxuan Fan, Renbin Zhan Charles E. Mitchell, David A.T. Harper, Michael J. Melchin, Ping'an Peng, Stan C. Finney, Xiaofeng Wang. Episodes 2006;29:183-96. https://doi.org/10.18814/epiiugs/2006/v29i3/004
Abstract This paper is a revision of the standard chronostratigraphy Ordovician historical type area in England and Wales. The response to need for more precise definitions series stages, especially practical international correlation. In some cases this has entailed moving horizons Series bases away from those classical sections. scheme will be used as forthcoming Correlation Chart British System. divided into five series: Tremadoc, Arenig, Llanvirn, Caradoc Ashgill. Llanvirn extended...
Late Ordovician to earliest Silurian is an important geological period marked by large and biological events. However, the strata fossils of this interval are not complete in many parts world. Based on studies 43 sites South China, particular continuous sections Yangtze platform, we recognize a succession including seven graptolite zones two shelly faunas. In ascending order, Dicellograptus complanatus , complexus Paraorthograptus pacificus (including Lower Subzone, Tangyagraptus typicus...
ABSTRACT A global review of new and existing data on the distribution uppermost Ordovician (Hirnantian) brachiopods indicates existence at least three biogeographically distinct faunas. The typical Hirnantia fauna characterised subtropical temperate latitudes comprised a variety ecological associations; reached its acme during bohemicus uniformis zones. Atypical faunas, developed marginal to Gondwana, are low diversity have few species in common with fauna; their spatial probably marked...
“The Great Ordovician Biodiversification Event” (GOBE) was arguably the most important and sustained increase of marine biodiversity in Earth’s history. During a short time span 25 Ma, an “explosion” diversity at order, family, genus, species level occurred. The combined effects several geological biological processes helped generate GOBE. peak GOBE correlates with unique paleogeography, featuring greatest continental dispersal Paleozoic. Rapid sea-floor spreading during this coincided warm...
Preface. 1. Paleontology as a science . in the modern world. science. Steps to understanding. Fossils and evolution. today. Review questions. References. Further reading. 2. time space Frameworks. On ground: lithostratigraphy. Use of fossils: discovery biostratigraphy. Paleobiogeography. fold belts. 3. Taphonomy quality fossil record Fossil preservation. Quality record. 4. Paleoecology paleoclimates Paleoecology. Paleoclimates. 5. Macroevolution tree life. Evolution by natural selection. The...
Abstract The phylogeographical evolution and the consequent changing distribution diversity of rhynchonelliform brachiopods through Ordovician are linked to dynamic palaeogeography period. Early (Tremadocian Floian) is characterized by globally low-diversity faunas with local biodiversity epicentres, notably on South China Palaeoplate; low-latitude porambonitoid-dominated early plectambonitoid clitambonitoid representatives, as well high-latitude assemblages mostly dominated orthoids, can be...
Abstract We present a new approach to laser ablation inductively coupled plasma mass spectrometry (LA‐ICP‐MS) U‐Pb dating of carbonates based on selection and pooling pixels from 2‐D elemental isotopic ratio maps. This image mapping technique is particularly useful for targeting subdomains in samples with complex geological histories. Key major trace elements that are sensitive detrital components, postformational fluid ingress, mineralogical changes, or diagenetic overprinting measured...
The Ordovician biodiversification is considered one of the most significant radiations in marine ecosystems entire Phanerozoic. Originally recognized as 'Ordovician Radiation', a label retained during 1980s and 1990s, term 'Great Biodiversification Event' (GOBE) was coined late 1990s subsequently adopted by scientific community. biodiversification, has always been long-term adaptive radiation, resulting sum different individual diversifications all groups organisms that occurred...