Suchomimus ( `` crocodile mimic '' ) was a fish-eating ( and meat-eating ) large spinosaurid theropod dinosaur with a crocodile-like head . It lived 112 million years ago in the Lower Cretaceous period in what is now Africa . Suchomimus ( `` crocodile mimic '' ) is a genus of large spinosaurid dinosaur with a crocodile-like mouth that lived 112 million years ago , during the late Aptian stage of the Cretaceous period in Africa .