Miocene

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Definition
  1. Proper noun:
    • The Miocene epoch: A specific geological epoch of the Neogene period, spanning from approximately 23 to 5.3 million years ago. It is characterized by a warmer global climate and the expansion of grasslands, leading to the diversification of grazing mammals.
Usage
  • The word "Miocene" is always capitalized as it is a proper noun referring to a specific time period in Earth's history. It is used primarily in scientific contexts such as geology, paleontology, and evolutionary biology.
Examples
  • Proper noun:
    • Fossils from the Miocene provide crucial evidence for mammalian evolution.
    • During the Miocene, the climate was generally warmer than today.
    • Scientists study Miocene sedimentary rocks to understand ancient environments.
Advanced Usage
  • "Miocene-Pliocene boundary": Refers to the transition between the Miocene and the subsequent Pliocene epoch.
    • The Miocene-Pliocene boundary is marked by a significant cooling event.
  • "Middle Miocene" / "Late Miocene": Subdivisions used to specify a more precise time within the epoch.
    • This fossil is dated to the Late Miocene.
Variants and Related Words
  • Miocene (adjective): Pertaining to the Miocene epoch.
    • Miocene deposits; Miocene fauna.
  • Neogene: The geological period that includes the Miocene and Pliocene epochs.
Synonyms
  • Geological epoch: A general term for a major division of geological time. (Note: "Miocene" is a specific instance of a geological epoch.)
Related Phrases
  • "Miocene climate optimum": A period of significant warming during the early to middle Miocene.
    • The Miocene Climate Optimum saw the retreat of polar ice sheets.
Noun
  1. from 25 million to 13 million years ago; appearance of grazing mammals

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