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See detailFirst Clarkforkian equivalent land mammal age in the latest Paleocene basal Sparnacian facies of Europe: Fauna, flora, paleoenvironment and (bio)stratigraphy
Smith, T.; Quesnel, F.; De Plöeg, G. et al

in PLoS ONE (2014), 9(1),

The Paleocene-Eocene Thermal Maximum (PETM) is correlated with the first occurrences of earliest modern mammals in the Northern Hemisphere. The latest Paleocene Clarkforkian North American Land Mammal Age ... [more ▼]

The Paleocene-Eocene Thermal Maximum (PETM) is correlated with the first occurrences of earliest modern mammals in the Northern Hemisphere. The latest Paleocene Clarkforkian North American Land Mammal Age, that has yielded rodents and carnivorans, is the only exception to this rule. However, until now no pre-PETM localities have yielded modern mammals in Europe or Asia. We report the first Clarkforkian equivalent Land Mammal Age in the latest Paleocene deposits of the basal Sparnacian facies at Rivecourt, in the north-central part of the Paris Basin. The new terrestrial vertebrate and macroflora assemblages are analyzed through a multidisciplinary study including sedimentologic, stratigraphic, isotopic, and palynological aspects in order to reconstruct the paleoenvironment and to evaluate biochronologic and paleogeographic implications. The mammals are moderately diverse and not abundant, contrary to turtles and champsosaurs. The macroflora is exceptional in preservation and diversity with numerous angiosperms represented by flowers, fruits, seeds and wood preserved as lignite material, revealing an abundance of Arecaceae, Betulaceae, Icacinaceae, Menispermaceae, Vitaceae and probably Cornaceae. Results indicate a Late Paleocene age based on carbon isotope data, palynology and vertebrate occurrences such as the choristoderan Champsosaurus, the arctocyonid Arctocyon , and the plesiadapid Plesiadapis tricuspidens. However, several mammal species compare better with the earliest Eocene. Among these, the particular louisinid Teilhardimys musculus, also recorded from the latest Paleocene of the Spanish Pyrenees, suggests a younger age than the typical MP6 reference level. Nevertheless, the most important aspect of the Rivecourt fauna is the presence of dental remains of a rodent and a "miacid" carnivoran, attesting to the presence of two modern mammalian orders in the latest Paleocene of Europe. Interestingly, these two groups are also the only modern groups recorded from the latest Paleocene of North America, making Rivecourt the first direct equivalent to the Clarkforkian Land Mammal Age outside of North America. © 2014 Smith et al. [less ▲]

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See detailThe earliest Eocene mammal fauna of the Erquelinnes Sand Member near the French-Belgian border
Missiaen, P.; Quesnel, F.; Dupuis, C. et al

in Geologica Belgica (2013), 16(4), 262-273

The earliest Eocene Erquelinnes site was discovered in 1880, but its mammal fauna has been frequently ignored. This paper provides the first detailed overview of the Erquelinnes mammals since 1929. The ... [more ▼]

The earliest Eocene Erquelinnes site was discovered in 1880, but its mammal fauna has been frequently ignored. This paper provides the first detailed overview of the Erquelinnes mammals since 1929. The new faunal list doubles the known diversity at Erquelinnes to a total of 16 species, now also including amphilemurids, hyaenodontids, mesonychids, louisinids, equids and diacodexeids. The majority of the Erquelinnes species is also present in the earliest Eocene Dormaal MP7 reference fauna, with as most notable exceptions the presence of a potentially dwarfed specimen of Dissacus, and of two perissodactyl taxa at Erquelinnes. The ceratomorph perissodactyl Cymbalophus cuniculus is also known from the earliest Eocene of England, but a specimen identified as cf. Sifrhippus sandrae is closely similar to contemporaneous primitive North American equids. This specimen represents the oldest unambiguous European equid and highlights faunal similarities between Europe and North America during this time interval. Faunal differences between Erquelinnes and Dormaal seem mostly due to depositional differences, and the Erquelinnes fauna represents a typical earliest Eocene fauna, closely similar to other MP7 and PEI faunas in Europe. [less ▲]

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See detailPaleohydrological and paleoenvironmental changes recorded in terrestrial sediments of the Paleocene-Eocene boundary (Normandy, France)
Garel, S.; Schnyder, J.; Jacob, J. et al

in Palaeogeography, Palaeoclimatology, Palaeoecology (2013), 376

The Paleocene-Eocene boundary (55.8. Ma) is associated with the Paleocene-Eocene Thermal Maximum (PETM), which is characterized by a negative Carbon Isotope Excursion (CIE), reflecting a major ... [more ▼]

The Paleocene-Eocene boundary (55.8. Ma) is associated with the Paleocene-Eocene Thermal Maximum (PETM), which is characterized by a negative Carbon Isotope Excursion (CIE), reflecting a major perturbation of the carbon cycle, and by an extreme and rapid global warming. The Cap d'Ailly area (Upper Normandy, France), in which previous studies have revealed the Paleocene-Eocene transition, is a reference locality for organic-rich terrestrial and lagoonal deposits of the "Sparnacian" stage, widespread in Northwestern Europe. In this study, we focus on the organic matter content of the Vasterival section. Organic data (Rock-Eval, palynofacies, biomarker analyses and compound specific isotope analyses) were acquired in order to constrain the paleoenvironmental and paleohydrological changes that occurred at the Paleocene-Eocene boundary. Stable carbon isotope compositions of higher plant leaf wax n-alkanes reveal a CIE of - 4.5‰, extending throughout the second half of the studied section. Palynofacies observations reveal: (i) an abrupt shift from a closed, quiescent marsh pond to an open eutrophic swamp subjected to algal blooms, concomitant with the onset of the CIE; and (ii) the evolution from a swamp to a tidal flat due to the marine transgression that occurred during the PETM. Higher plant biomarkers and their hydrogen isotopic composition compared to nitrogen analyses suggest: (i) dry episodes just before the PETM that may help to understand the triggering of this hyperthermal event; and (ii) a moister climate associated with a stronger seasonality during the early PETM.© 2013 ElsevierB.V. [less ▲]

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See detailUnraveling the Paleocene-Eocene thermal maximum in shallow marine tethyan environments: The tunisian stratigraphic record
Stassen, P.; Dupuis, C.; Steurbaut, E. et al

in Newsletters on Stratigraphy (2013), 46(1), 69-91

Despite the increasing understanding of the Paleocene-Eocene thermal maximum (PETM) in open marine environments, shallow marine settings remain relatively unexplored. We investigated an upper Paleocene to ... [more ▼]

Despite the increasing understanding of the Paleocene-Eocene thermal maximum (PETM) in open marine environments, shallow marine settings remain relatively unexplored. We investigated an upper Paleocene to lower Eocene shallow-water sequence near Kalaat Senan in Tunisia (Sidi Nasseur and Wadi Mezaz sections) in order to generate a stratigraphic framework of the PETM in a shallow marine fine-grained siliciclastic setting of the Southern Tethys. These sections expose the top part of the El Haria Formation (Fm.), the Chouabine Fm. and the lower part of the limestone bearing El Garia Fm., covering the upper Paleocenelower Eocene (NP9a to NP11). The PETM interval is situated near the top of the El Haria Fm. and the regional stratigraphy is compared to the well-known Egyptian setting. The isotope record of total organic carbon (δ13Corg) reveals the characteristic negative carbon isotope excursion (CIE), comparable to the δ13Corg record of the Global Boundary Stratotype Section and Point of the Eocene at Dababiya (Egypt). Although the Tunisian PETM interval is quite expanded, no anomalous beds are observed and only the CIE "core" is partly represented as the top part of the PETM is truncated. In addition to a well-expressed CIE, the position of the Paleocene-Eocene boundary is supported by the appearance of nannoplankton (Discoaster araneus) and foraminiferal (e. g. Acarinina multicamerata) marker taxa. Furthermore, ostracode and benthic foraminiferal turnovers coincide with the onset of the PETM and are characterized by the disappearance of many common Paleocene taxa (e. g. Frondicularia aff. phosphatica) in this area. The lowest occurrences of Alocopocythere attitogonensis and Buntonia? tunisiensis (ostracodes), Reophax sp. 1 (benthic foraminifera) and Fasciculithus tonii (calcareous nannoplankton) may be applicable for regional correlation. These results indicate that characteristic PETM taxa evolved and/or dispersed immediately after the main δ13Corg shift. © 2013 Gebrüder Borntraeger, Stuttgart, Germany. [less ▲]

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See detailCycles of humid-dry climate conditions around the P/E boundary: New stable isotope data from terrestrial organic matter in Vasterival section (NW France)
Storme, Jean-Yves ULg; Dupuis, C.; Schnyder, J. et al

in Terra Nova (2012), 24(2), 114-122

The Palaeocene/Eocene boundary (P/EB) and the Palaeocene-Eocene Thermal Maximum (55.8Ma) are defined stratigraphically based on carbon isotope ratios of various materials. Here, the position of the P/EB ... [more ▼]

The Palaeocene/Eocene boundary (P/EB) and the Palaeocene-Eocene Thermal Maximum (55.8Ma) are defined stratigraphically based on carbon isotope ratios of various materials. Here, the position of the P/EB is refined in the terrestrial-lacustrine and swampy Vasterival section (Upper Normandy coast, France) by using carbon isotopes measured on dispersed organic matter (δ 13C org). Moreover, nitrogen isotopes on dispersed organic matter (δ 15N org) are, for the first time in the Palaeogene record, associated with carbon isotope and lithological data to constrain palaeoclimatic and environmental changes around the P/EB in a terrestrial environment. Humid-dry fluctuations before and during this key interval in Earth history are suggested. © 2012 Blackwell Publishing Ltd. [less ▲]

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See detailUn nouveau site à vertébrés terrestres juste après la limite Paléocène-Eocène, dans la Formation de Mortemer en Haute-Normandie, France
Smith, T.; Dupuis, C.; Folie, A. et al

in Comptes Rendus Palevol (2011), 10(1), 11-20

European terrestrial vertebrate sites of the Upper Paleocene-Lower Eocene deposits are predominantly known from the central and eastern parts of the Paris Basin. However, several outcrops covering this ... [more ▼]

European terrestrial vertebrate sites of the Upper Paleocene-Lower Eocene deposits are predominantly known from the central and eastern parts of the Paris Basin. However, several outcrops covering this interval are scattered along the Upper Normandy coast, in the western part of the Paris Basin. Here we report the discovery of a new terrestrial vertebrate site in the Mortemer Formation, at the top of the cliffs of Sotteville-sur-Mer in Upper Normandy, France. The vertebrate level is situated about 1.5. m above the onset of the Paleocene-Eocene Carbon Isotope Excursion (CIE) based on dispersed organic carbon and is therefore Earliest Eocene in age. The vertebrate fauna is composed of fish, amphibians, lizards and mammals, including the earliest peradectid marsupials and paromomyid plesiadapiform of Europe. A diverse and rich charophyte flora is well represented throughout the lower part of the outcrop and allows the conclusion that the CIE falls in the Peckichara disermas biozone. La plupart des sites à vertébrés terrestres du Paléocène supérieur-Eocène inférieur d'Europe sont connus du Centre et de l'Est du Bassin de Paris. Cependant, plusieurs affleurements de cet intervalle de temps sont éparpillés le long de la côte en Haute-Normandie dans l'Ouest du Bassin de Paris. Dans cet article, nous faisons état de la découverte d'un nouveau site à vertébrés terrestres dans la Formation de Mortemer, au sommet des falaises de Sotteville-sur-Mer en Haute-Normandie, France. Le niveau à vertébrés est situé environ 1,5. m au-dessus du point initial de l'Excursion Isotopique du Carbone de la limite Paléocène-Eocène (CIE), mise en évidence à partir du carbone organique dispersé. Il est donc daté de l'Eocène basal. La faune de vertébrés comprend des poissons, des amphibiens, des lézards et des mammifères dont les plus anciens marsupiaux peradectidés et le plus ancien plésiadapiforme paromomyidé d'Europe. Une flore riche et variée de charophytes, bien distribuée le long de la partie inférieure de l'affleurement permet de préciser que la CIE est située dans la biozone à Peckichara disermas. © 2010 Académie des sciences. [less ▲]

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See detailDiscovery of non-biodegradable fossil cellulose.
Lechien, V.; Rodriguez, Ch.; Grandjean, Jean ULg et al

Poster (2004, December 17)

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See detailMultidisciplinary study of the Wealden deposits in the Mons Basin (Belgium): a progress report.
Yans, J; Spagna, P; Foucher, JC et al

in Aardkungigen Mededelingen (2002), 12

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See detailMultidisciplinary study of the Wealden deposits in the Mons Basin (Belgium): a progress report.
Yans, J; Spagna, P; Foucher, JC et al

in Aardkungigen Mededelingen (2002), 12

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See detailTaphocoenosis of miocene taxodiaceous wood from the Entre-Sambre-et-Meuse cryptokarsts (southern Belgium)
De Putter, T.; Roche, M.; Dupuis, C. et al

in N. Jb. Geol. Palaont. Abh. (1996), 202(2), 259-268

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See detailThe Stavelot Massif from Cambrian to recent. A survey of the present state of knowledge
Bless, M. J. M.; Bouckaert, J.; Camelbeek, L. et al

in Annales de la Société Géologique de Belgique (1990)

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