When, in the process of evolution, did vertebrates come to land?

The evolution of animals is a natural process of development of animals, which is accompanied by changes in adaptations, the extinction of species. Vertebrates entered the water about 50 million years after the first land discoverers, the psilophytes. This happened in the Devonian period, which is the fourth geological period of the Paleozoic era.
There are 2 answers to this question: in the Devonian period, in the Paleozoic era.



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