Order - Monotremata

Class: Mammalia

Subclass: Prototheria

Order: Monotremata

Name derivation: “single perforation”

Number of known Species: 5

  • Family: Ornithorhynchidae (1 species - platypus)
  • Family: Tachyglossidae (4 species - echidnas)

Notes: Based on Catalogue of Life as of July 2024