Algal Deposits of Unkar Proterozoic Age in the Grand Canyon, Arizona

• 1 July 1928
• journal article
• Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
• Vol. 14  (7) , 597-600
• https://doi.org/10.1073/pnas.14.7.597

Abstract

Keywords

• BIOMEDICAL RESEARCH
• BIOINFORMATICS