Network-level fossil of a phosphate-free biosphere

Joshua Goldford, Boston University, Bioinformatics, Boston, MA, United States, Hyman Hartman, Massachusetts Institute of Technology, Biology, Cambridge, MA, United States, Temple F Smith, Boston University, Biomedical Engineering, Boston, MA, United States and Daniel Segre, Boston University, Biology; Bioinformatics; Physics; Biomedical Engineering, Boston, MA, United States