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What was the ecosystem from which the first terrestrial animals emerged?

User Eduardo Matsuoka
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Carboniferous
However, the anatomy of the first tetrapods reveals that they remained subservient to the aquatic habitats present on the continents (rivers, streams, ponds) in order to integrate literally terrestrial ecosystems only from the Carboniferous (-345 million years).
User RQDQ
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Terrestrial ecosystems (tetrapods)
User Kusal Dissanayake
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