sentences:  Prestosuchids were quadrupedal reptiles, medium to large in size, characterized by erect posture, large and narrow skull and large antorbital openings.Attention was first brought to "Batrachotomus" in 1993 by Michael Parrish, a palaeontologist at Northern Illinois University.Parrish hypothesized that "Batrachotomus" (then "Kupferzellia") belonged to the family of Rauisuchidae, another clade of carnivorous reptiles, and species of "Rauisuchus".