Newly discovered early Archean (3.4–3.5 Ga Old) microorganisms from the Warrawoona Group of Western Australia

  title={Newly discovered early Archean (3.4–3.5 Ga Old) microorganisms from the Warrawoona Group of Western Australia},
  author={J. William Schopf and Bonnie M. Packer},
  journal={Origins of life and evolution of the biosphere},
  • J. Schopf, B. Packer
  • Published 1 September 1986
  • Geology
  • Origins of life and evolution of the biosphere
Four taxa of filamentous fossil prokaryotes have been formally described from carbonaceous cherts collected in 1977 by S.M. Awramik from the Lower Archean (3.4 to 3.5 Ga old) Towers Formation, Warawoona Group, of northwestern Western Australia (Awramik et al., 1983). If established as bona fide Early Archean microfossils these taxa would be among the oldest fossils now known in the geologic record. However, the specific collecting site and the precise stratigraphic layer within the Towers… 
2 Citations
The earth and its life: Systems perspective
  • J. Veizer
  • Geology, Medicine
    Origins of life and evolution of the biosphere
  • 2005
Isotopic record of past sea water shows that on time scales of 107 yr the solid earth, hydrosphere, atmosphere and life act as a unified system controlled by tectonics, that is by the hierarchy of theSolid earth.
Amino acids in the Karelian shungites
The study of amino acids in the Precambrian shungite rocks of Karelia showed that their contents vary within 25–89 μg/g depending on proportions between shungite and mineral components. It was


Carbonaceous filaments from North Pole, Western Australia: Are they fossil bacteria in archean stromatolites? A discussion
Abstract A sample of chert from North Pole in the Archaean Pilbara block of Western Australia contains carbonaceous filaments that resemble microfossils. These occur in alternating light and dark
Filamentous fossil bacteria from the Archean of Western Australia
Abstract Four morphotypes of structurally preserved, filamentous fossil bacteria have been discovered in petrographic thin sections of laminated, carbonaceous cherts from the ∼3500 Ma-old Warrawoona
Stromatolites 3,400–3,500 Myr old from the North Pole area, Western Australia
Stromatolites are the least controversial evidence of early life; they are organosedimentary structures resulting from the growth and metabolic activity of microorganisms1. Before this report,
Stromatolites 3,400-Myr old from the Archean of Western Australia
Internally laminated conical mounds characterise a regionally extensive chert unit near the top of the 3,400-Myr old Warrawoona Group in the Pilbara Block of Western Australia. The chert formed by