427
| Trace Fossil - Bird Tracks | | | Paleogene (Eocene) | Green River Formation |
257 & 258
| Fern Leaf - positive and negative impressions | Alethopteris seili | | Pennsylvanian | Mazon Creek, Illinois |
368
| Redwood Tree Leaf - carbon film impression | Sequoia sp. | | | unknown |
157
| Horn Corals - replaced with red agate | Lophophyllum sp. | | Devonian | Utah |
456
| Redwood Leaf - impressions in limonite | Dendraster venturensis | | Neogene (Pliocene) | |
580
| Beetle (predacious water beetle) - preserved in asphalt | Cybister explanatus | | Neogene (Pleistocene) | Kern County, California |
624
| Gastropod (snail) - internal sandstone mold | | | Neogene (Pleistocene) | Sonora, Mexico |
1279
| Mammal Bone | Unidentified | | Paleogene (Oligocene) | South Dakota |
1305 & 1306
| Brachiopod - pyrite replacement (left: acid etched; right: natural) | Paraspirifer bqwenockeri | | Devonian | Silica Shale, Lucas County, Ohio |
F-01
| Whale bone- cross section showing bone cells, some filled with mud | | | | |
F-02
| Redwood - wood fragment | | | | |
F-03
| Tree branch - showing external shape | | | | |
F-04
| Boring Clam Burrows | Pholads sp. | | | |
F-05
| Amber with insect parts | | | | |
F-06
| Scallop assemblage - external impressions in mudstone | | | | |
F-07
| Turret shell - internal sandstone mold | | | | |
F-08
| Olive shell - internal sandstone mold | | | | |
F-09
| Clam (Eel river) - showing traces of original shell | | | | |
F-10
| Clam assemblage (Eel river) - showing traces of original shell | | | | |
HSU-41
| Coprolite - fossil cast of excrement | | | | |
