Skip to Main content Skip to Navigation
Theses

Approche taphonomique multi-taxons des accumulations de petits vertébrés, implication pour les reconstitutions paléoenvironnementales au Pléistocène

Abstract : Accumulations of small vertebrates on archaeological sites result from coprocenose as well as from post-depositionnal phenomena. The comprehension of the whole process is necessary to get a viable interpretation of the corresponding paleocommunity. The multi-taxa taphonomic analysis, based on micromammals, lagomorphs and birds, allows to obtain a precise characterisation of the predator. Taphonomic referentials, were created, they consist of experimentation on the impact of trampling, of a referential on the post-depositionnal modifications in the karstic system as well as of a referential of a great eagle owl accumulation. These referentials allowed to get a better approach of some variables used for the characterisation of the predator, such as the teeth isolation, the superficial alteration marks and the skeleton representation. The application of the multi-taxa method to the fossil assemblages showed an over-representation of three species on the site of Roc-en-Pail. The paleoecological data point out the presence of a cold climate with an open landscape as well as damp zones. For the Caune de l’Arago, the taphonomic analyses on the AU P and R emphasize the role of the great eagle owl, which induces a minimum bias of representativeness. The anthropogenic contribution of small game has been pointed out in the AU G4, J and Q. This site shows a series of cold stages and milder stages. The interpretation of these climatic variations and their correlation to MIS 12, 13 and 14 is complex, two hypotheses are discussed to interpret the infilling.
Document type :
Theses
Complete list of metadatas

Cited literature [275 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-01955843
Contributor : Abes Star :  Contact
Submitted on : Friday, December 14, 2018 - 4:16:09 PM
Last modification on : Thursday, May 28, 2020 - 9:42:03 AM
Long-term archiving on: : Friday, March 15, 2019 - 4:54:45 PM

File

these_loic_lebreton.pdf
Version validated by the jury (STAR)

Identifiers

  • HAL Id : tel-01955843, version 1

Collections

Citation

Loïc Lebreton. Approche taphonomique multi-taxons des accumulations de petits vertébrés, implication pour les reconstitutions paléoenvironnementales au Pléistocène. Paléontologie. Université de Perpignan, 2018. Français. ⟨NNT : 2018PERP0024⟩. ⟨tel-01955843⟩

Share

Metrics

Record views

172

Files downloads

95