2 genera are assigned to the phylum NEMERTINA

OrderGenusFOPFOSLOPLOS
uncertainArchisymplectesCSerp-lCMosc-u
uncertainincertae sedisJTith-lJTith-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).