@misc{indiciae9aacd68d9785, title = {Objective synoymy catalog of the Cambrian fossils of the world (as recorded through 1954)}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1955}, doi = {10.3133/ofr55129}, url = {https://pubs.usgs.gov/publication/ofr55129}, note = {Source identifier: ofr55129} }