noun
a group of primitive amphibians that lived during the Carboniferous and Permian periods
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Adelospondyli is an extinct group of amphibians that lived during the Carboniferous period.
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I just learned about adelospondyli in my biology class.
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Those adelospondyli creatures look like something out of a sci-fi movie.
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The complexity of the adelospondyli fossil record is a puzzle waiting to be solved.