Ornithorhynchidae
Platypus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Monotremata
Suborder:	Platypoda
Family:	Ornithorhynchidae Gray, 1825
Genera
†Obdurodon Ornithorhynchus

Ornithorhynchidae is one of the two extant families in the order Monotremata, and contains the Platypus and its extinct relatives. The other family is the Tachyglossidae, or echidnas. Within Ornithorhynchidae are two genera, Obdurodon and Ornithorhynchus:

• Family Ornithorhynchidae
  • Genus †Obdurodon — an ancient branch of the platypus family
    • †Obdurodon dicksoni
    • †Obdurodon insignis
    • †Obdurodon/Monotrematum sudamericanum
  • Genus Ornithorhynchus
    • Ornithorhynchus anatinus (the modern Platypus)
    • †Ornithorhynchus maximus

Another two genera, Steropodon and Teinolophos may also belong to Ornithorhynchidae. However, they are both very ancient, and scientific literature seems to indicate that they are closely related to, but not a part of, the Ornithorhynchids.

[edit] References

• Media related to Ornithorhynchidae at Wikimedia Commons
• Groves, C. (2005). Wilson, D. E., & Reeder, D. M.. ed. Mammal Species of the World (3rd ed.). Johns Hopkins University Press. pp. p. 2. ISBN 0-801-88221-4. http://www.bucknell.edu/msw3. 

v • d • e Extant Monotremata species by family Kingdom Animalia · Phylum Chordata · Class Mammalia · (unranked) Australosphenida Tachyglossidae (Echidnas) Tachyglossus Short-beaked Echidna (T. aculeatus) Zaglossus (Long-beaked echidnas) Sir David's Long-beaked Echidna (Z. attenboroughi) · Eastern Long-beaked Echidna (Z. bartoni) · Western Long-beaked Echidna (Z. bruijni) Ornithorhynchidae Ornithorhynchus Platypus (O. anatinus) Category