Reptile-like physiology in Early Jurassic stem-mammals
E. Newham, P. G. Gill, P. Brewer, M. J. Benton, V. Fernandez, N. J. Gostling, D. Haberthür, T. Kankaanpaa, A. Kallonen, C. Navarro, A. Pacureanu, B. Zeller-Plumhoff, K. Richards, K. Robson-Brown, P. Schneider, , I. J. Corfe
The paper uses synchrotron X-ray imaging to show Early Jurassic stem-mammals had lifespans and femoral blood flow rates similar to reptiles, indicating reptile-like physiology rather than endothermic metabolism.
bioRxiv · Oct 10, 2019Paleontology