US EditionMummified early Permian reptile reveals ancient amniote breathing apparatus
The fossils preserve cartilage, skin and protein, giving scientists direct evidence that early amniotes used chest muscles to breathe.
7 Articles
7 Articles
A mummified reptile found in a cave in Oklahoma, United States, provided new clues about the origin of the respiratory system in vertebrates. The specimen, with preserved soft tissues, allowed rebuilding for the first time how the first amniotes breathed, a group that includes reptiles, birds and mammals.The animal belongs to the genus Captorhinus, a small lizard that lived between 289 and 286 million years. Its remains preserved bones, skin and…
Paleontology: Thanks to two exceptionally well-preserved fossils, it is clear that reptiles were already breathing through their ribs 280 million years ago…
Mummified early Permian reptile reveals ancient amniote breathing apparatus
Costal aspiration breathing was an evolutionary innovation that was fundamental to the conquest of the terrestrial realm by amniotes (mammals, reptiles, birds and their common ancestor)1–5. Extant amniotes use an integrated thoracic skeleton for costal-muscle-generated inhalation and exhalation, differing substantially from their anamniote relatives, which possess more passive cutaneous and buccal pumping forms of ventilation. This difference ex…
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