Data from: The dipnoan buccal pump reconstructed in 3D and implications for air breathing in Devonian lungfishes

Alice M. Clement, John A. Long, Paul Tafforeau & Per E. Ahlberg
Lungfishes are known for, and indeed take their name from, their bimodal respiratory abilities. All three extant genera can use their lungs to extract oxygen from the atmosphere, although their reliance upon this capability differs among taxa. Lungs are considered primitive for the Osteichthyes, however the distinctive buccal pump mode of air gulping exhibited by extant lungfishes appears to be a specialization. It is associated with a number of derived skeletal characters (cranial ribs, long...
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