RODENTS FROM THE SOLUTREAN LEVELS OF ROCHEFORT CAVE: AN ORIGINAL REFERENCE FOR THE LAST GLACIAL MAXIMUM IN NORTHWEST FRANCE

Résumé : Systematic sieving of sediments from the Solutrean levels of Rochefort cave provided many rodent remains referred to seven species. The taphonomic study suggests an accumulation of the remains by medium sized and little destructive nocturnal raptors (Bubo scandiacus, Strix nebulosa or Asio otus). Because of their particular prey preferences, these predators are not likely to have induced an important bias on the representation of species. The high proportions of Microtus gregalis and Dicrostonyx torquatus, in association with the occurrence of Spermophilus sp. to a lesser extent, clearly confirm the existence of very severe weather conditions and indicate the presence of a steppe biotope. The associations of rodents therefore support the assignment of the studied levels to MIS 2, especially at the Last Glacial Maximum (LGM), which is consistent with radiometric dating. Furthermore, the presence of rodent species closely related to moist habitats (Microtus agrestis, Arvicola sapidus and Arvicola amphibius) suggests that wet and wooded environments persisted next to the cavity and that the Erve Valley presumably was a micro-cryptic refugia during the Last Glacial Maximum.
Type de document :
Article dans une revue
Quaternaire, Centre National de la Recherche Scientifique, 2016, 27 (4), pp.341--352
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01586055
Contributeur : Laurent Jonchère <>
Soumis le : mardi 12 septembre 2017 - 14:04:54
Dernière modification le : jeudi 11 janvier 2018 - 06:25:25

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  • HAL Id : hal-01586055, version 1

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Constance Hanquet, Emmanuel Desclaux, Stéphan Hinguant. RODENTS FROM THE SOLUTREAN LEVELS OF ROCHEFORT CAVE: AN ORIGINAL REFERENCE FOR THE LAST GLACIAL MAXIMUM IN NORTHWEST FRANCE. Quaternaire, Centre National de la Recherche Scientifique, 2016, 27 (4), pp.341--352. 〈hal-01586055〉

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