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Publisher's Note: Addition to Acknowledgements

Posted by PLOS_ONE_Group on 12 Mar 2010 at 11:38 GMT

We thank Parks Canada for granting successive collection permits to Royal Ontario Museum field crews.
http://plosone.org/article/info:doi/10.1371/journal.pone.0009586#article1.back1.ack1.p1

The authors would like to add the following acknowledgment: This is Royal Ontario Museum Burgess Shale Research Project number 17 and Cambridge Earth Sciences Contribution ESC 1330.

No competing interests declared.