19 genera are assigned to the class TOMMOTIIDA
| Order | Genus | FOP | FOS | LOP | LOS |
|---|
| MITROSAGOPHORA | Bercutia | Cm | Tomm-u | Cm | Tomm-u |
| MITROSAGOPHORA | Camenella | Cm | Tomm-l | Cm | Boto-l |
| MITROSAGOPHORA | Dailyatia | Cm | Atda-u | Cm | Atda-u |
| MITROSAGOPHORA | Geresia | Cm | Tomm-u | Cm | Tomm-u |
| MITROSAGOPHORA | Kelanella | Cm | Atda-u | Cm | Atda-u |
| MITROSAGOPHORA | Kennardia | Cm | Atda-u | Cm | Atda-u |
| MITROSAGOPHORA | Lugoviella | Cm | Atda | Cm | Boto-l |
| MITROSAGOPHORA | Micrina | Cm | Atda-u | Cm | Atda-u |
| MITROSAGOPHORA | Ninella | Cm | Atda-u | Cm | Atda-u |
| MITROSAGOPHORA | Paterimitra | Cm | Atda-u | Cm | Atda-u |
| MITROSAGOPHORA | Porcauricula | Cm | Tomm-u | Cm | Tomm-u |
| MITROSAGOPHORA | Sonella | Cm | lMid | Cm | lMid |
| MITROSAGOPHORA | Tannuolina | Cm | Atda-u | Cm | Tojo-l |
| UNNAMED | Eccentrotheca | Cm | Tomm-l | Cm | Boto-l |
| UNNAMED | Jaycea | Cm | Atda-u | Cm | Atda-u |
| UNNAMED | Kulparina | Cm | Atda-u | Cm | Atda-u |
| UNNAMED | Lapworthella | Cm | Tomm-l | Cm | Tojo |
| UNNAMED | Stenothecopsis | Cm | Atda | Cm | mMid |
| UNNAMED | Sunnaginia | Cm | Tomm-l | Cm | Boto-l |
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FOP = Period of first occurrence
FOS = Stage of first occurrence
LOP = Period of last occurrence
LOS = Stage of last occurrence
Stage abbreviations follow Sepkoski (2002).