223
| Trilobite | Ditomopyge scitula | | Lake Bridgeport Shale, Wolf Mountain Formation, Lake Bridgeport, Texas |
236
| Brachiopods | Dictyoclostus sp. | | Kansas City, Missouri |
240
| Brachiopod | Linoproductus sp. | | Texas |
242
| Large Horn Coral | Caninia torquia | | Hueco Mountains, Texas |
243 a,b
| Coral | Lophophyllum profundum | | Hueco Mountains, Texas |
244
| Sea Lilly | Erisocrinus typus (white) | | LaSalle Limestone, Pontiac, Illinois |
245
| Sea Lilly | Stellarocrinus bilineatus | | LaSalle Formation, Ocoya, Illinois |
246
| Crinoid Stem | | | |
248 a
| Holothuroid (Sea Cucumber) | Achistrum sp. | | Essex, Illinois |
248 b
| Holothuroid (Sea Cucumber) | Achistrum sp. | | Essex, Illinois |
252
| Snail | Worthenia sp. | | Texas |
253
| Mussel | Myalina perattenuata | | Grundy County, Missouri |
256
| Tree Fern Leaf | Pecopteris sp | | Franklin County, Kansas |
259 b
| Scouring Rush | Annularia longifolia | | Terre Haute, Indiana |
259 b
| Scouring Rush | Annularia longifolia | | Terre Haute, Indiana |
262
| Scouring Rush | Annularia stellata | | Mazon Creek, Illinois |
266
| Scouring Rush Trunk (internal mold) | Calamites sp. | | Iowa |
270
| Seed Fern Leaf | Neuropteris sp. | | Mazon Creek, Illinois |
276 a
| Seed Fern | Sphenopteris artemisaefolioides (pair) | | Galesburg, Illinois |
276 b
| Seed Fern | Sphenopteris artemisaefolioides (pair) | | Galesburg, Illinois |
279a (279b in storage)
| Tully Monster | Tullimonstrum gregarium | | Mazon Creek Formation, Illinois |
694
| Trace Fossils (Sea star resting places and trilobite burrows.) | | | Tonganoxie Sandstone, Ottawa, Kansas |
706
| Seed Fern | Neuropteris sp. | | Mazon Creek, Illinois |
710 a
| Seed Fern | Sphenophyllum emarginatum (pair) | | Terre Haute, Indiana |
1607
| Seed Fern Plate | Alethopteris seilii | | St. Clair, Pennsylvania |
710 b
| Seed Fern | Sphenophyllum emarginatum (pair) | | Terre Haute, Indiana |
5016a *5016b in storage)
| Tully Monster | Tullimonstrum gregarium | | Mazon Creek Formation, Illinois |
Pn-01
| Coal | | | |
PnHSU20
| Scale Tree | Lepidodendron | | |
