0000000000804726
AUTHOR
Marcel Jeannet
Le gisement pléistocène moyen récent de Romain-la-Roche (Doubs, France) :synthèse biostratigraphique et paléoécologique
International audience; The Uppermost Middle Pleistocene site of Romain-la-Roche (Doubs, France) : synthesis of biostratigraphic and palaeoecological conclusions.- The site of Romain-la-Roche is a karstic swallowhole which acted as a natural trap where fall numerous large mammals, and where diverse small vertebrates were transported as preys of birds. The site was excavated between 1980 and 1991 by Patrick Paupe and his team. It yielded 52 species of mammals (more than 10 000 identifiable remains), more than 13 of species of birds, two of reptiles, one of amphibian, two of fishes and undetermined gastropods. Among the mammalian species 34.6 % are of rodents (3975 remains), 9.6 % insectivore…
Summer air temperature, reconstructions from the last glacial stage based on rodents from the site Taillis-des-Coteaux (Vienne), Western France.
AbstractThe oxygen isotope composition of phosphate from tooth enamel of rodents (δ18Op) constitutes a valuable proxy to reconstruct past air temperatures in continental environments. This method has been applied to rodent dental remains from three genera, Arvicola sp., Microtus sp. and Dicrostonyx sp., coming from Taillis-des-Coteaux, Vienne, France. This archaeological site contains an exceptionally preserved sedimentary sequence spanning almost the whole Upper Palaeolithic, including seven stratigraphic layers dated from 35 to 17 cal ka BP. The abundant presence of rodent remains offers the opportunity to quantify the climatic fluctuations coeval of the various stages of human occupation…
Reappraisal of ‘chronospecies' and the use of Arvicola (Rodentia, Mammalia) for biochronology.
13 pages; International audience; The water vole, genus Arvicola, is characterised by a broad geographic distribution throughout Europe and is widespread during the late Middle and Upper Pleistocene. This genus is used as a major biostratigraphic tool within the Quaternary. Specific determinations using the Schmelzband-Differenzierung-Quotient or SDQ have identified many chronospecies within the fossil species Arvicola cantiana (Hinton, 1910). As SDQ calculation remains limited, this study reappraises the Arvicola genus in terms of morphodiversity and morphospace using outline analysis which takes into account the tooth as a whole. Outline analysis suggests that one single species of Arvico…
Investigating the influence of climate changes on rodent communities at a regional-scale (MIS 1-3, southwestern France).
25 pages; International audience; Terrestrial ecosystems have continuously evolved throughout the Late Pleistocene and theHolocene, deeply affected by both progressive environmental and climatic modifications, aswell as by abrupt and large climatic changes such as the Heinrich or Dansgaard-Oeschgerevents. Yet, the impacts of these different events on terrestrial mammalian communities arepoorly known, as is the role played by potential refugia on geographical species distributions.This study examines community changes in rodents of southwestern France between50 and 10 ky BP by integrating 94 dated faunal assemblages coming from 37 archaeologicalsites. This work reveals that faunal distributi…