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Figure 2. Discovery. A paleontologist finds fragments of bone on an outcrop. It might be an elephant jaw! Loose fragments are collected and wrapped, and the locality is documented before excavation begins. |
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Figure 3. Excavation. Careful digging reveals the extent of the fossil. Sediment is removed from around the bones so that the fossil is isolated on a pedestal of rock, but very little of the actual bone is exposed. |
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Figure 4. Field Jacketing. Exposed bone is covered with damp tissue paper, then strips of burlap are dipped in plaster and smoothed over the top and sides of the pedestal. |
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Figure 5. Removal. After the plaster jacket has hardened, the pedestal is undercut and the jacket carefully rolled over. Additional plaster and burlap may be added to complete the jacket. |
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