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Article Reference Early Holocene slope erosion in the Scheldt basin (Belgium): Naturally and/or human induced?
Located in Library / RBINS Staff Publications 2019
Article Reference Early Neanderthal constructions deep in Bruniquel Cave in southwestern France
Very little is known about Neanderthal cultures, particularly early ones. Other than lithic implements and exceptional bone tools, very few artefacts have been preserved. While those that do remain include red and black pigments3 and burial sites, these indications of modernity are extremely sparse and few have been precisely dated, thus greatly limiting our knowledge of these predecessors of modern humans. Here we report the dating of annular constructions made of broken stalagmites found deep in Bruniquel Cave in southwest France. The regular geometry of the stalagmite circles, the arrangement of broken stalagmites and several traces of fire demonstrate the anthropogenic origin of these constructions. Uranium-series dating of stalagmite regrowths on the structures and on burnt bone, combined with the dating of stalagmite tips in the structures, give a reliable and replicated age of 176.5 thousand years (±2.1 thousand years), making these edifices among the oldest known well-dated constructions made by humans. Their presence at 336 metres from the entrance of the cave indicates that humans from this period had already mastered the underground environment, which can be considered a major step in human modernity.
Located in Library / RBINS Staff Publications 2016
Article Reference Early Neoproterozoic carbonate correlations within 2 stratigraphic sequences from Mbuji-Mayi Supergroup (Oriental Kasai Prov., DRC) - Microfacies vs magnetic susceptibility, combined with C, O, Sr chemostratigraphy, new tools for Neoproterozoic stratigr..
Located in Library / RBINS Staff Publications 2017
Article Reference Early Palaeozoic ocean anoxia and global warming driven by the evolution of shallow burrowing
The evolution of burrowing animals forms a defining event in the history of the Earth. It has been hypothesised that the expansion of seafloor burrowing during the Palaeozoic altered the biogeochemistry of the oceans and atmosphere. However, whilst potential impacts of bioturbation on the individual phosphorus, oxygen and sulphur cycles have been considered, combined effects have not been investigated, leading to major uncertainty over the timing and magnitude of the Earth system response to the evolution of bioturbation. Here we integrate the evolution of bioturbation into the COPSE model of global biogeochemical cycling, and compare quantitative model predictions to multiple geochemical proxies. Our results suggest that the advent of shallow burrowing in the early Cambrian contributed to a global low-oxygen state, which prevailed for ~100 million years. This impact of bioturbation on global biogeochemistry likely affected animal evolution through expanded ocean anoxia, high atmospheric CO2 levels and global warming.
Located in Library / No RBINS Staff publications
Article Reference Early Paleogene δ 13C and δ 18O records based on marine ostracodes: implications for the Upper Danian succession at Sidi Naseur (Tunisia) and their application value in paleoceanography
Located in Library / RBINS Staff Publications
Article Reference Early Paleogene δ13C and δ18O records based on marine ostracodes: implications for the upper Danian succession at Sidi Nasseur (Tunisia) and their application value in paleoceanography
Ostracode and other microfossil assemblages from the Tunisian Trough have previously been studied to characterize paleoenvironmental conditions during the late Danian interval. Whereas the preservation of foraminifera is generally not sufficient for stable isotope studies, well preserved ostracodes provide continuous upper Danian stable isotope records (δ13C, 18O) at Sidi Nasseur, W Tunisia. The late Danian is considered to cover a hyperthermal, known as the “Latest Danian Event” (LDE; ~61.75 Ma) or “Top C27n Event” and has been unequivocally identified in benthic foraminiferal isotopes from shelf sediments in Egypt and deep-sea material from the Pacific Ocean. Stratigraphic changes in the isotope ratios of the genus Bairdia reveal a rather scattered record for δ13C lacking any pronounced negative δ13C excursion, probably due to the many factors influencing δ13C in ostracodes like metabo- lism, diet or dissolved inorganic carbon of sea-water. The accompanying δ18O record is less ambiguous showing a shift towards lower values close to the level where the LDE is to be expected, but minimum values are similar to δ18O values at the base and top of the studied sequence. These data suggest that the core of the negative stable isotope excursions of the LDE is lost in the stratigraphic gap at the planktic foraminiferal P3a/P3b and calcareous nannofossil NTp7A/NTp7B subzonal boundaries, so that the LDE could not be unequivocally identified in Tunisia. A cross-plot of δ13C and δ18O of ostracode valves displays distinctive clusters for smooth-shelled taxa like Bairdia and others as well as for ornamented taxa, with the latter group showing substantially lower values for both δ13C and δ18O. This pattern strongly resembles those from early Eocene data from southwestern France and Recent ostracodes from the Iceland Plateau. The offsets suggest substantial differences in life style, food source or isotope fractionation during the calcification process for different shell morphologies in ostracodes.
Located in Library / RBINS Staff Publications
Article Reference Early release of eggs and embryos in a brooding ancient asexual ostracod: brood selection or bet-hedging to increase fecundity?
Located in Library / RBINS Staff Publications
Article Reference Early Researchers Involved with Branchiobdellidans (Annelida: Clitellata) on Japanese Crayfish, and a Reassessment of the Taxonomic Status of Branchiobdella digitata Pierantoni, 1906
Located in Library / RBINS Staff Publications 2020
Article Reference Early seed plants from Western Gondwana: Paleobiogeographical and ecological implications based on Tournaisian (Lower Carboniferous) records from Argentina
Located in Library / RBINS Staff Publications
Article Reference Earth science collections of the Centre Grégoire Fournier (Maredsous) with comments on Middle Devonian–Carboniferous brachiopods and trilobites from southern Belgium
Located in Library / RBINS Staff Publications 2021