Ictodosauria

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Definition
  1. Noun:
    • An extinct order of reptiles: "Ictidosauria" refers to a group of reptiles that lived during the later part of the Triassic period and are now extinct. They are considered part of the evolutionary lineage leading toward mammals.
Usage Notes
  • The term "Ictidosauria" is used exclusively in scientific contexts, specifically in paleontology and evolutionary biology. It is a taxonomic name for an order of prehistoric animals.
  • It is always treated as a plural noun (e.g., ) but can also refer to the group as a singular entity in taxonomic classification.
Examples
  • Noun:
    • Fossil evidence suggests the Ictidosauria possessed features intermediate between reptiles and mammals.
    • The study focused on the jaw structure of the Ictidosauria.
Advanced Usage
  • In technical literature, "Ictidosauria" may be discussed in relation to other therapsid groups, highlighting their phylogenetic position.
    • The phylogenetic analysis placed the Ictidosauria close to the cynodonts.
Variants and Related Words
  • Ictidosaur (n): A member of the order Ictidosauria.
    • The discovered skeleton was identified as an ictidosaur.
  • Therapsid (n): The larger subclass of "mammal-like reptiles" to which Ictidosauria belong.
Synonyms
  • There are no direct common-language synonyms. In scientific contexts, they may be described as:
    • Advanced therapsids
    • Mammal-like reptiles (a broader, informal term for therapsids)
Related Phrases
  • No common idioms or phrasal verbs are associated with this highly specialized term.
Noun
  1. extinct reptiles of the later Triassic period

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