Which vertebrate class is considered to be the first that was entirely terrestrial?

2 answers:

7 0

<span>Reptilia.
Reptiles were the first animals to develop shelled eggs, meaning they could be laid on land rather than in water as is necessary for the shell-less eggs of amphibians and fish. They also developed dry, scaly skin to prevent the moisture loss amphibians experience through their moist, permeable skins when on land. </span>

Cloud [144]3 years ago

6 0

The first entirely terrestrial vertebrate class totally independent from the aquatic habitat is the class reptilia.

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