3 genera are assigned to the phylum PENTASTOMIDA
| Order | Genus | FOP | FOS | LOP | LOS |
|---|
| uncertain | Boeckelericambria | Cm | Trep-l | Cm | Trep-l |
| uncertain | Haffnericambria | Cm | Trep-l | Cm | Trep-l |
| uncertain | Heymonsicambria | Cm | Trep-l | O | Trem-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).