Definition

Noun: - Family Ornithorhynchidae: A taxonomic family within the order Monotremata, containing the single extant species, the platypus (Ornithorhynchus anatinus). This family is characterized by unique mammalian features such as egg-laying, a duck-like bill, and webbed feet.

Usage

• Scientific Classification: Used primarily in biological and zoological contexts to classify the platypus within the mammalian lineage.
  • The platypus is the sole surviving member of the family Ornithorhynchidae.
  • Taxonomists place the genus Ornithorhynchus within the family Ornithorhynchidae.

Advanced Usage

• In Evolutionary Biology: Discussing the unique evolutionary position of monotremes.
  • The family Ornithorhynchidae represents a distinct branch of mammalian evolution, separate from placental and marsupial mammals.

Variants and Related Words

• Ornithorhynchid (adj/noun): Pertaining to the family Ornithorhynchidae; a member of this family.
  • The ornithorhynchid lineage is ancient.
• Monotreme (noun): The broader order (Monotremata) to which this family belongs, encompassing egg-laying mammals.
• Platypus (noun): The common name for the single extant species in this family.

Synonyms

• Platypus family: A common, less formal synonym.
  • The platypus family is native to eastern Australia.

Related Terms

• Genus Ornithorhynchus: The genus containing the platypus, which is the only genus in the family Ornithorhynchidae.
• Monotremata: The order. The family Ornithorhynchidae is part of this order, which also includes the family Tachyglossidae (echidnas).

Noun

1. platypus