title: Abiological origin of described stromatolites older than 3.2 Ga:  reply.
authors.affiliation: Department of Geological and Environmental Sciences, Stanford University, California 94305, USA.
authors.forename: D R
authors.initials: DR
authors.lastname: Lowe
mesh_terms: D002244:Carbon; D004783:Environmental Microbiology; D005580:Fossils; D019015:Geologic Sediments / Q000032:analysis* / Q000382:microbiology; D055593:Geological Phenomena; D005844:Geology; D010163:Paleontology / Q000379:methods*; D014904:Western Australia
chemical_list: D002244:Carbon