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devonian period

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Word: Devonian Period

Definition: The Devonian Period is a time in Earth's history that lasted from about 405 million to 345 million years ago. It is known for many changes in the environment and the types of living things. During this period, fish became very common, and the first amphibians (animals that can live both in water and on land) appeared. This period is also famous for the appearance of ammonites, which are ancient sea creatures with spiral shells.

Usage Instructions:
  • When talking about geology or the history of life on Earth, you can use the term "Devonian Period" to describe this specific time.
  • It is usually written with a capital "D" and "P" because it is a specific historical term.
Example Sentence:
  • "The Devonian Period is often called the 'Age of Fishes' because fish were so abundant during this time."
Advanced Usage:
  • In scientific discussions, you might hear phrases like "Devonian marine ecosystems" or "Devonian terrestrial life," which refer to the types of life forms and environments that existed during this period.
Word Variants:
  • There are no direct variants of "Devonian Period," but you might encounter related terms such as:
    • Devonian (adjective): Referring to anything related to the Devonian Period.
    • Devonian rocks: Rocks that were formed during the Devonian Period.
Different Meaning:
  • "Devonian" primarily refers to this specific geological period, so it does not have other meanings outside of this context.
Synonyms:
  • There aren’t exact synonyms for "Devonian Period," but you might see it described as:
    • "Age of Fishes" (informal term)
Idioms and Phrasal Verbs:
  • There are no specific idioms or phrasal verbs related to the Devonian Period, as it is a scientific term.
Summary:

The Devonian Period is a significant time in Earth’s history where fish thrived and the first amphibians appeared. It marks an important chapter in the evolution of life, particularly in the transition from water to land.

Noun
  1. from 405 million to 345 million years ago; preponderance of fishes and appearance of amphibians and ammonites

Synonyms

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