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The evolutionary step that freed these animals from the water was the development of the amniote egg.

使这些动物得以脱离化步骤是羊膜卵得改

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eobiont, EOC, Eocambrian, Eocene, Eochoristites, eoclimax, Eocretaceous, Eocrinoidea, eocrystals, eocylosis,

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3G, 401(K), a,

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Unlike the temnospondyls, these early amniotes were free to reproduce far from the water, by laying eggs with protective shells, which were probably more leathery than mineralized.

与穿椎动, 这些早期的羊膜在远离的地方自由繁产下带有保护壳的卵,这些卵可能比矿化的更坚韧。

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eohippus, Eoisotelus, EOJ, EOKA, EOL, Eolande, eolation, eolian, eolianite, eolic,

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