miocene

Thân thiện

The Miocene epoch saw the spread of vast grasslands.

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.

Học thuật

Noun

1. from 25 million to 13 million years ago; appearance of grazing mammals

Từ đồng nghĩa

• Miocene
• Miocene epoch