 Instead, he hypothesized that "Limnoscelis" might have fed on invertebrates.However, Romer argued that "Limnoscelis" could have been a successful semiaquatic predator, comparing its anatomy with that of known aquatic predators like crocodilians and phytosaurs.Several subsequent analyses have agreed with Romer’s argument, and most studies agree that Limnoscelis most likely had a predatory lifestyle.