Fur and Fangs: Mammal Origins. palaeo.gly.bris.ac.uk. [zarchiwizowane z tego adresu (2011-06-05)].. Palaeobiology and Biodiversity Research Group, University of Bristol.
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Fur and Fangs: Mammal Origins. palaeo.gly.bris.ac.uk. [zarchiwizowane z tego adresu (2011-06-05)].. Palaeobiology and Biodiversity Research Group, University of Bristol.