| 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. |
