sentences:  "Batrachotomus" was described by palaeontologist David J. Gower 22 years after its discovery.The locality where "Batrachotomus" lived was a swampy region and the name comes from the Greek "batrachos/βάτραχος" (frog) and "tome/τομή" (cutting, slicing), which refers to its preying on the large amphibian "Mastodonsaurus".In contrast with sprawling reptiles, like crocodiles, this large carnivore was very agile with locomotor superiority due to its erect stance.