 According to one 1995 study, only six sites containing "Deinonychus" fossils contain no trace of "Tenontosaurus", and "Deinonychus" remains are only rarely found associated with other potential prey, like "Sauropelta".In all, 20% of "Tenontosaurus" fossils are found in close proximity to "Deinonychus", and several scientists have suggested that this implies "Deinonychus" was the major predator of "Tenontosaurus".Adult "Deinonychus", however, were much smaller than adult "Tenontosaurus", and it is unlikely a single "Deinonychus" would have been capable of attacking a fully grown "Tenontosaurus".