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Subject
- Bryozoa, Fossil3
- Crinoidea, Fossil2
- Foraminifera, Fossil2
- Geology, Stratigraphy–Ordovician2
- Geology–Montana2
- Paleontology-Ordovician2
- Cirripedia1
- Geology, Stratigraphic-Mississippian1
- Geology, Stratigraphic–Cambrian1
- Geology, Stratigraphic—Cretaceous1
- Geology, Stratigraphy-Ordovician1
- Geology-Mexico1
- Geology-United States1
- Geology–Kansas1
- Geology—Guidebooks1
- Groups (Stratigraphy)-Indiana1
- Invertebrates, Fossil1
- Paleoceanography1
- Paleoclimatology1
- Paleoecology1