| Family | Genus | species | Author | Type Number | Category |
| Gagrellidae | Liobunum | escondidum | Chamberlin | 1642 | holotype |
| Gagrellidae | Protolophus | rossi | Goodnight and Goodnight | 5103 | holotype |
| Gagrellidae | Trachyrhinus | sonoranus | Chamberlin | 1643 | holotype |
Last Update: 3 June 1997
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