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WordNet-Online
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Definitions from WordNet
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Definitions from the Web
Stegocephalia
Description
Stegocephalia refers to a group of extinct tetrapods, which includes the earliest known terrestrial vertebrates that walked the Earth during the Devonian and Carboniferous periods. These ancient amphibians are known for their bony plates on their heads and sometimes on their bodies, which provided protection.
Senses and Usages
- Sense: Zoology
- Part of Speech: Noun
- Definition: A taxonomic group of vertebrates comprising early terrestrial tetrapods, including various species of extinct amphibians.
- Example Sentence: The stegocephalia, such as Acanthostega and Ichthyostega, played a crucial role in the evolution of land vertebrates.
- Sense: Paleontology
- Part of Speech: Noun
- Definition: The period or era in Earth's history when stegocephalians flourished, dating back to approximately 360 million years ago.
- Example Sentence: Fossils of stegocephalia from the late Devonian period have provided invaluable insights into the early stages of terrestrial life.
- Sense: History
- Part of Speech: Noun
- Definition: A term occasionally used to refer to the armored dinosaurs of the order Stegosauria during popular culture discussions or fictional contexts.
- Example Sentence: In some sci-fi movies, stegocephalia are wrongly portrayed as large dinosaurs instead of ancient amphibians.
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