Prehistoric Pittsford
Eurypterid Structure
Hughmilleria socialis Sarle
Prehistoric Worlds
The most common eurypterid in the Pittsford Fauna is Hughmilleria socialis Sarle.  The drawing at the right shows some of the basic structures of this arthropod.  Note the position of the compound eyes (pterygotidlike), the small ocelli in the center of the carapace, and the anterior appendages, especially the swimming legs.  The anteriormost food-gathering apparatus, the chelicerae, are  seen in the drawing.
  
Hughmilleria has a streamlined body with twelve tergites followed by a terminal telson.  No doubt Hughmilleria was an active swimmer and may have been restricted to rivers and lakes and, perhaps, brackish coastal waters.  It does not appear to have been part of the typical Silurian marine fauna of the time.
COPYRIGHT 2000 Samuel J. Ciurca, Jr.
Rochester, New York
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EURYPTERIDS ARE AMONG THE  MOST INTERESTING AND COMPLEX ARTHROPODS OF THE PALEOZOIC WATERS.  A SEARCH ON THE INTERNET  REVEALS AN UNUSUAL NUMBER OF ENTRIES REGARDING THESE PREHISTORIC ANIMALS AND RELATIVES (eg. SCORPIONS).  
TRY SEVERAL SEARCH ENGINES.
THE EURYPTEIDS, PREHISTORIC ANIMALS THAT LIVED OVER 400 MILLION YEARS AGO, WERE DISCOVERED IN PITTSFORD DURING ENLARGEMENT OF THE ERIE CANAL (1900-1903, SARLE).
To learn more about the old Erie Canal Locks that are preserved at Pittsford, New York,
check out:      
Prehistoric Pittsford & The Erie Canal
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OTHER FOSSILS OF THE PITTSFORD BLACK SHALE
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Prehistoric Pittsford
Hugh Miller, the Scottish geologist, celebrates the 200th anniversary of his birth in 2002.  Currently, we celebrate the 100th anniversay of the discovery of the Hughmilleria eurypterid fauna at Pittsford  by Clifton J. Sarle.  See  WHAT'S IN A NAME for more information about Hugh Miller of Scotland.
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