References
The head and beak of a platypus skin specimen stored in the Natural History Museum's collections. This specimen was the first ever studied by scientists and is known as the holotype or type specimen.
- Burrell, H (1927) The Platypus, its discovery, zoological position, form and characteristics, habits, life history, etc. Angus & Robertson Limited. Australia.
- Carrick, FN, Grant, TR and Temple-Smith, PD (2008) Platypus, Ornithorhynchus anatinus. In: S Van Dyck and R Strahan (eds), The mammals of Australia. Third Edition, pp. 32-35. Reed New Holland, Sydney, Australia.
- Grant, T (2007) Platypus. Fourth edition. Csiro Publishing. Australia.
- Griffiths, M (1978) The biology of the Monotremes. Academic Press (London) Ltd.
- Lunney, D, Grant, T, Matthews, A, Esson, C, Moon, C and Ellis, M (1998) Determining the distribution of the platypus (Ornithorhynchus anatinus) in the Eden region of south-east New South Wales. Australian Mammalogy 20: 239-250.
- The IUCN Red List of Threatened Species, 2009. IUCN Red List: Ornithorhynchus anatinus
- Nowak, R (1999) Walker’s Mammals of the World. Volume I. Sixth Edition. The John Hopkins University Press. Baltimore and London.
- Warren, WC et al. (2008) Genome analysis of the platypus reveals unique signatures of evolution. Nature 453: 175-183.
- Wilson, DE and Reeder, DM (2005) Mammal Species of the World. Volume I. Third Edition. The John Hopkins University Press. Baltimore.