 Furthermore, "Proterosuchus" possessed fibrolamellar bone, indicative of a high growth rate and corresponding high metabolism.However, studies conflict on whether the metabolism of "Proterosuchus" was within the range of extant endotherms.Its metabolic rate was lower than most other crocopods, except for the ectothermic phytosaurs and crocodilians, which may have been an adaptation to a crocodile-like predatory strategy.