| 11. | Amniotes were more suited to the new conditions.
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| 12. | Thus, the term mesonephros is usually reserved for the embryonic kidney of amniotes.
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| 13. | The transverse processes of mammals are homologous to the cervical ribs of other amniotes.
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| 14. | The first fully terrestrial vertebrates were amniotes.
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| 15. | Together with turtles, the tuatara has the most primitive hearing organs among the amniotes.
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| 16. | Turtles are classified as amniotes, along with other reptiles, birds, and mammals.
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| 17. | These embryonic membranes and the lack of a larval stage distinguish amniotes from tetrapod amphibians.
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| 18. | Post cranial remains of amniotes can be identified from their astragalus bone in the ankle.
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| 19. | Sauropsids evolved from basal amniotes stock approximately 320 million years ago in the Paleozoic Era.
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| 20. | The phylogenetic position of mesosaurs influences the current understanding of how amniotes evolved temporal fenestrae.
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