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*Hemiarges maccullochi*, Reed 1914, trilobite,

Starfish Bed CL/Ao3, Farden Member, S Threave Formation, Upper Drummuck Group, Ashgill, Rawtheyan Scotland Upper Ardmillan Group, Upper Drummock Subgroup, South Threave Formation, Farden Member, Lady Burn Starfish Beds, Bed CL/Ao3 *Dicellograptus anceps* Biozone, *Paraorthograptus pacificus* Sub-biozone,Ashgill Series, Rawtheyan Stage (upper), Ordovician