CARAPACE WITH ATTACHED TERGITE
Eurypterus remipes DeKay from the upper Victor Member of the Fiddlers Green Formation, Bertie Group, Late Silurian, Ridgemount Quarry North, Niagara Peninsula, Ontario, Canada. The halo of white objects surrounding the carapace are cross-sections of the prolific brachiopod Whitfieldella. The circular rock upon which the carapace is preserved is a conchoid--resulting from the conchoidal weathering of this very fine-grained dolostone.
   The brachiopods have been micri- tized--all calcite has been removed--and only the shape of the brachs is obvious.
   The horizon is just below the Black Shale Marker Bed described in the New York State Geological Association Fieldtrip Guidebook. 
Eurypterus remipes 2
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NOTES: All of the eurypterid remains occurring below the Black Shale Marker Bed belong to the Victor Member of the Fiddlers Green Formation (Bertie Group).  All eurypterid remains are found within the interreef zones, ie. between stromatolites and thrombolites.  The Victor Dolostone is a crystalline unit, massive beds are intercalated with very fine-grained dolostones (waterlimes) containing abundant eurypterid remains (especially in the upper portions).  Repetitive layers of Whitfieldella occur through- out, evidently storm-produced layers.  The Victor Member can be traced eastward to a famous locality at Passage Gulf in Eastern New York.  It is thus a very widespread unit--if we could only get politics out of the situation.  In Canada, the term Fiddlers Green Formation is still not generally used (please visit the type section of the Fiddlers Green at Butternut Creek southeast of Syracuse, New York. 
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AT LEFT:
Eurypterus remipes
DeKay
Late Silurian Bertie Group
Plelps Waterlime Member of the Fiddlers Green Formation.
Passage Gulf near Spinnerville, New York
Specimen from the
Ciurca Collection
Passage Gulf, New York SPECIMEN NOW IN Smithsonian Institution
AT RIGHT: Eurypterus remipes DeKay which I collected in the Phelps Waterlime Member of the Fiddlers Green Formation at a locality I discovered opposite the Litchfield Town Hall. Specimen 071468-3, Ciurca Eurypterid Col- lection. The animal is not complete, and the associated remains indicate that the remains observed are part of a windrow - the remains were collected together via storm currents.