PHYLLOCARIDS                             EURYPTERIDS.NET
080801-1
AT LEFT: PHYLLOCARID MANDIBLE, CERATIOCARIS? SP.  WILLIAMSVILLE WATERLIME, BERTIE GROUP, LATE SILURIAN, FORT ERIE, ONTARIO, CANADA. JUST ABOVE THE MANDIIBLE IS A PORTION OF  A SEGMENT OF AN EURYPTERID.
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BELOW: TAIL END OF A PHYLLOCARID, PROBABLY THE COM- MON FORM, CERATIOCARIS ACUMINATA.  PHYLLOCARIDS ARE FOUND, WITHIN THE WILLIAMSVILLE FORMATION, FROM THE PORT COLBORNE AREA OF ONTARIO, CANADA, EAST- WARD TO SYRACUSE, NEW YORK (OXBOW WATERLIME OF RICKARD).  THIS SPECIMEN IS ABOUT 12 CM. LONG (ABOUT 4.75 INCHES). PHYLLOCARIDS HAVE ALSO BEEN RECOVER- ED FROM THE FIDDLERS GREEN FORMATION  AND FROM THE BLACK SHALES OF THE VERNON FORMATION, SALINA GROUP, OF WESTERN NEW YORK STATE. WHILE EURYPTERIDS ARE MORE COMMON WITHIN THESE UNITS, PHYLLOCARIDS ARE GENERALLY ASSOCIATED WITHIN THESE HORIZONS.
LATE SILURIAN WILLIAMSVILLE WATERLIME, BERTIE GROUP, EAST OF BUFFALO, NEW YORK