2025-02-212013-07-30https://dash.harvard.edu/handle/1/42715176Thank you for making this research available to all. It's somewhat galling that so much NSF (taxpayer funded) research lies behind for-profit journal paywalls when it should be available to everyone. A story just profiled on The Earth Story page on Facebook highlighted how these worms fossilised traces may become the defining boundary fossils for the Cambrian. I then went to Google scholar to see what else may have been published and what pdf papers might be available. Yours was one of the few. Again, thanks!