9
| Trilobite | Olenellus mohavensis | | Cambrian | Marble Mountains, California |
120
| Trilobite | Greenops boothi | | Devonian | Moscow Formation, Lebanon, New York |
121
| Trilobite & Brachiopod | Odontocephalus aegeria | | Devonian | Onondaga limestone, Perry County, Pennsylvania |
122
| Trilobite | Phacops circumspectans | | Devonian | South Spanish Sahara, Mauritania, Africa |
124
| Trilobite | Reedops logani | | Devonian | Haragan formation, Coal City, Oklahoma |
125
| Trilobite | Phacops rana crassituberculata | | Devonian | Lucas County, Ohio |
126
| Trilobite | Phacops rana crassituberculata | | Devonian | Silica Formation, Lucas County, Ohio |
525
| Trilobite | Asaphiscus wheeleri | | Cambrian | House Range, Utah |
527 a
| Trilobite | Cryptolithus tesselatus (pair) | | Ordovician | Swatara Gap, Pennsylvania |
527 b
| Trilobite | Cryptolithus tesselatus (pair) | | | Swatara Gap, Pennsylvania |
528
| Trilobite | Diacalymene clavicula | | Middle Silurian | Henryhouse Formation, Pontotoc County, Oklahoma |
529
| Trilobite | Dipleura dekayi | | Devonian | Hamilton Formation, Madison County, New York |
535
| Trilobite | Geesops sparinodosus | | Middle Devonian | Alnif, Morocco, Africa |
537
| Trilobite (plate) | Homotelus bromidensis | | Ordovician | Bromide Formation, Carter County, Oklahoma |
540
| Trilobite | Ogygopsis klotzi | | Cambrian | British Columbia, Canada |
544
| Trilobite | Olenellus vermontanus | | Cambrian | Fruitville, Pennsylvania |
546
| Trilobite and Crinoid | Phacops rana crassituberculata & Gilbertsocrinus ohioensis | | Devonian | Lucas County, Ohio |
550
| Trilobite | Dalmanites limulurus | | Middle Silurian | Rochester Shale, Monroe County, New York |
551
| Trilobite | Isotelus maximus | | Ordovician | Cincinnati, Ohio |
HSU 11
| Trilobite | | | | |
