the distribution of "deinosuchus" specimens indicates these giant crocodilians may have preferred estuarine environments. in the aguja formation of texas, where some of the largest specimens of "deinosuchus" have been found, these massive predators probably inhabited brackish-water bays. although some specimens have also been found in marine deposits, it is not clear whether "deinosuchus" ventured out into the ocean (like modern-day saltwater crocodiles); these remains might have been displaced after the animals died. "deinosuchus" has been described as a "conspicuous" component of a purportedly distinct biome occupying the southern half of late cretaceous north america.