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Hooker, J.J. & Thomas, K.M., 2001. A New Species of Amphirhagatherium (Choeropotamidae, Artiodactyla, Mammalia) from the Late Eocene Headon Hill Formation of Southern England and Phylogeny of Endemic European 'Anthracotherioids'. Palaeontology 44 (5): 827-853, 1 pl.. ≡
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