order Monotremata

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Definition

Noun: - Order Monotremata: A biological order of egg-laying mammals, coextensive with the subclass Prototheria. This order is characterized by primitive, reptilian-like features such as laying eggs instead of giving birth to live young.

Usage
  • The Order Monotremata represents a unique and ancient lineage of mammals.
  • Scientists study the Order Monotremata to understand early mammalian evolution.
  • The platypus and echidna are the only living members of the Order Monotremata.
Advanced Usage
  • In taxonomic classification, Order Monotremata sits alongside Theria (marsupials and placentals) within the class Mammalia.
  • The defining characteristics of Order Monotremata include a cloaca and the presence of electroreceptors in the platypus bill.
Variants and Related Words
  • Monotreme (n): A common name for any mammal belonging to the Order Monotremata.
    • The platypus is a well-known monotreme.
  • Prototherian (adj/n): Relating to or a member of the subclass Prototheria, synonymous with Monotremata.
    • Prototherian reproduction is distinct from other mammals.
Synonyms
  • Egg-laying mammals: A descriptive synonym for the members of this order.
Noun
  1. coextensive with the subclass Prototheria

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