| Family | Subfamily | Genus | Species |
| Asaphidae | Isotelinae | Isotelus | gigas |
| Asaphidae | Isotelinae | Isotelus | iowensis |
| Asaphidae | Isotelinae | Anataphrus | vigilans |
| Asaphidae | Isotelinae | Ectenaspis | n. sp. |
| Asaphidae | Isotelinae | Ectenaspis | beckeri |
| Asaphidae | Isotelinae | Nahannia | susae |
| Asaphidae | Brachyaspis | alacer | |
| Calymenidae | Flexicalymene | fayettensis | |
| Calymenidae | Flexicalymene | gracilis | |
| Calymenidae | Gravicalymene | quadricapita | |
| Calymenidae | Diacalymene | mammilata | |
| Cheiruridae | Cheirurinae | Ceraurus | milleranus |
| Cheiruridae | Cheirurinae | Gabriceraurus | elginensis |
| Cheiruridae | Cheirurinae | Ceraurinus | icarus |
| Cheiruridae | Deiphoninae | Sphaerocoryphe | maquoketensis |
| Encrinuridae | Encrinurinae | Encrinuroides | pernodosus |
| Encrinuridae | Cybelinae | Cybeloides | iowensis |
| Lichidae | Tetralichinae | Amphilichas | clermontensis |
| Lichidae | Tetralichinae | Amphilichas | bicornis |
| Lichidae | Tetralichinae | Amphilichas | rhinoceros |
| Proetidae | Cyphaspis | slocumi | |
| Pterygometopidae | Pterygometopinae | Achetella | fredricki |
| Pterygometopidae | Eomonorachinae | Calyptaulax | larrabeei |
| Raphiophoridae | Ampyxina | bellatula | |
| Styginidae | Eobrontus | n. sp. |