A reservoir can be cretaceous.Logical formLearned from4 sentences. Cretaceous age may undergo formations.Logical formLearned from4 sentences. Creatures can be from a late cretaceous period.Logical formLearned from4 sentences. A dinosaur may live during a late cretaceous period.Logical formLearned from4 sentences. (Chalk beds) can be cretaceous.Logical formLearned from4 sentences. Ammonoids can be cretaceous.Logical formLearned from4 sentences. Plants can be cretaceous.Logical formLearned from4 sentences. A plateau can be cretaceous.Logical formLearned from4 sentences. A late cretaceous period can be in a continent.Logical formLearned from4 sentences. Remains can be cretaceous.Logical formLearned from4 sentences. Pterosaurs can be cretaceous.Logical formLearned from4 sentences. Molluscs can be cretaceous.Logical formLearned from4 sentences. Cliffs can be cretaceous.Logical formLearned from4 sentences. A (chalk formation) can be cretaceous.Logical formLearned from4 sentences. (Age rocks) can be cretaceous.Logical formLearned from4 sentences.