Monotremata
Ornithorhyncidae
Platypus
Tachyglossidae - Tachyglossus
Short-beaked echidna
Tachyglossidae - Zaglossus
Long-beaked echidna
Platypus
Short-beaked echidna
Long-beaked echidna Platypus Short-beaked echidna Long-beaked echidna