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Headonornis hantoniensis, Taxa Only, Exact Match: 2 Treatments

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Headonornis hantoniensis     DYKE, GARETH J., 2001, The Fossil Waterfowl (Aves: Anseriformes) from the Eocene of England, American Museum Novitates 3354, pp. 1-16 : 5-9 5-9
Headonornis hantoniensis     DYKE, GARETH J., 2001, The Fossil Waterfowl (Aves: Anseriformes) from the Eocene of England, American Museum Novitates 3354, pp. 1-16 : 5 5

Specimens