Silurian Echiuroids: Possible Feeding Traces in the Thorold Sandstone

See allHide authors and affiliations

Science  22 Jun 1973:
Vol. 180, Issue 4092, pp. 1285-1287
DOI: 10.1126/science.180.4092.1285


Problematic trace fossils collected from the Middle Silurian Thorold Sandstone bear a striking resemblance to feeding traces made by the proboscises of modern echiuroid wormns. Paleoecological approximations of depth and salinity may be possible depending on population densities. Echiuroids may have been a significant element of the Paleozoic benthos.