A stage may pertain-to a late cretaceous period.Logical formLearned from38 sentences. A cretaceous period may end.Logical formLearned from36 sentences. Sandstones can be cretaceous.Logical formLearned from34 sentences. A section can be cretaceous.Logical formLearned from29 sentences. A sequence can be cretaceous.Logical formLearned from26 sentences. Sedimentary rocks can be cretaceous.Logical formLearned from26 sentences. Onwards can be cretaceous.Logical formLearned from26 sentences. A sandstone can be cretaceous.Logical formLearned from25 sentences. An unit can be constituted-of-or-filled-with cretaceous age.Logical formLearned from22 sentences. A stage may pertain-to a cretaceous period.Logical formLearned from22 sentences. A dinosaur can be cretaceous.Logical formLearned from20 sentences. Dinosaur can be from a late cretaceous period.Logical formLearned from20 sentences. Faunas can be cretaceous.Logical formLearned from19 sentences. Species can be cretaceous.Logical formLearned from19 sentences. Birds can be cretaceous.Logical formLearned from19 sentences.