Articles | Volume 20, issue 2
https://doi.org/10.5194/fr-20-105-2017
https://doi.org/10.5194/fr-20-105-2017
Research article
 | 
02 Mar 2017
Research article |  | 02 Mar 2017

Modeling the physiology of the aquatic temnospondyl Archegosaurus decheni from the early Permian of Germany

Florian Witzmann and Elizabeth Brainerd

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Latest update: 22 Jul 2024
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Short summary
Based on the estimation of its body mass and metabolic rate, we calculated heat balance, gas exchange, osmoregulation, and digestion of the 290-million-year-old aquatic amphibian Archegosaurus. Our results suggest that its physiology was more fish- than tetrapod-like in many respects. We conducted this study, which is mainly based on theoretical calculations and comparison with extant analogs, to shed light on the physiology and lifestyle of early tetrapods.