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Subjects
- Paleontology.[remove]2
- Dinosaurs -- Texas.1
- Fossils -- Collection and presentation -- Michigan.1
- Geology, stratigraphic -- Permian.1
- Geology.1
- Paleontology -- Carboniferous.1
- Paleontology -- Permian.1
- Paleontology -- Texas.1
- Red beds -- Oklahoma.1
- Sunday school teachers -- Michigan.1
- Vertebrates, Fossil -- Texas.1