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Salesa, M.; M. Antón, S. Peigné; J. Morales «Evidence of a false thumb in a fossil carnivore clarifies the evolution of pandas». Proceedings of the National Academy of Sciences, 103, 2, 2006, pàg. 379–382. DOI: 10.1073/pnas.0504899102. PMC: 1326154. PMID: 16387860.
Wallace, SC i Wang, X «Two new carnivores from an unusual late Tertiary forest biota in eastern North Americ». Nature, 431, 7008, 2004, pàg. 556–559. DOI: 10.1038/nature02819. PMID: 15457257.