J William Schopf

Summary

Affiliation: University of California
Country: USA

Publications

  1. ncbi request reprint Laser--Raman imagery of Earth's earliest fossils
    J William Schopf
    Department of Earth and Space Sciences, and Institute of Geophysics and Planetary Physics Center for the Study of the Evolution and Origin of Life, University of California, Los Angeles, California 90095 1567, USA
    Nature 416:73-6. 2002
  2. ncbi request reprint Raman imagery: a new approach to assess the geochemical maturity and biogenicity of permineralized precambrian fossils
    J William Schopf
    Department of Earth and Space Sciences, University of California, Los Angeles, California 90095 1567, USA
    Astrobiology 5:333-71. 2005
  3. pmc Raman spectra of a Lower Cambrian ctenophore embryo from southwestern Shaanxi, China
    Jun Yuan Chen
    Nanjing Institute of Geology and Palaeontology, Institute of Evo Developmental Biology, Nanjing University, Nanjing 210093, China
    Proc Natl Acad Sci U S A 104:6289-92. 2007
  4. ncbi request reprint Geological evidence of oxygenic photosynthesis and the biotic response to the 2400-2200 ma "great oxidation event"
    J William Schopf
    Department of Earth, Planetary, and Space Sciences, Center for the Study of Evolution and the Origin of Life, and Molecular Biology Institute, University of California, Los Angeles, 90095, USA
    Biochemistry (Mosc) 79:165-77. 2014
  5. doi request reprint Gypsum-permineralized microfossils and their relevance to the search for life on Mars
    J William Schopf
    Department of Earth and Space Sciences, University of California, Los Angeles, California 90095 1567, USA
    Astrobiology 12:619-33. 2012
  6. pmc The paleobiological record of photosynthesis
    J William Schopf
    Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics, Center for the Study of Evolution and the Origin of Life, and Molecular Biology Institute, University of California, Los Angeles, 90095, USA
    Photosynth Res 107:87-101. 2011
  7. doi request reprint Discovery of a new chert-permineralized microbiota in the Proterozoic Buxa Formation of the Ranjit window, Sikkim, northeast India, and its astrobiological implications
    J William Schopf
    Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics, Molecular Biology Institute, University of California, Los Angeles, California 90095, USA
    Astrobiology 8:735-46. 2008
  8. pmc Fossil evidence of Archaean life
    J William Schopf
    University of California, Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics Center for the Study of Evolution and the Origin of Life, Los Angeles, CA 90095, USA
    Philos Trans R Soc Lond B Biol Sci 361:869-85. 2006
  9. pmc Solution to Darwin's dilemma: discovery of the missing Precambrian record of life
    J W Schopf
    Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics Center for the Study of Evolution and the Origin of Life, University of California, Los Angeles, CA 90095 1567, USA
    Proc Natl Acad Sci U S A 97:6947-53. 2000
  10. ncbi request reprint Three-dimensional confocal optical imagery of precambrian microscopic organisms
    J William Schopf
    Department of Earth and Space Sciences, University of California, Los Angeles, California 90095, USA
    Astrobiology 6:1-16. 2006

Collaborators

Detail Information

Publications13

  1. ncbi request reprint Laser--Raman imagery of Earth's earliest fossils
    J William Schopf
    Department of Earth and Space Sciences, and Institute of Geophysics and Planetary Physics Center for the Study of the Evolution and Origin of Life, University of California, Los Angeles, California 90095 1567, USA
    Nature 416:73-6. 2002
    ....
  2. ncbi request reprint Raman imagery: a new approach to assess the geochemical maturity and biogenicity of permineralized precambrian fossils
    J William Schopf
    Department of Earth and Space Sciences, University of California, Los Angeles, California 90095 1567, USA
    Astrobiology 5:333-71. 2005
    ....
  3. pmc Raman spectra of a Lower Cambrian ctenophore embryo from southwestern Shaanxi, China
    Jun Yuan Chen
    Nanjing Institute of Geology and Palaeontology, Institute of Evo Developmental Biology, Nanjing University, Nanjing 210093, China
    Proc Natl Acad Sci U S A 104:6289-92. 2007
    ..The oldest ctenophore and the only embryonic comb jelly known from the fossil record, this exceptionally well preserved specimen provides important clues about the early evolution of the phylum Ctenophora and of metazoans in general...
  4. ncbi request reprint Geological evidence of oxygenic photosynthesis and the biotic response to the 2400-2200 ma "great oxidation event"
    J William Schopf
    Department of Earth, Planetary, and Space Sciences, Center for the Study of Evolution and the Origin of Life, and Molecular Biology Institute, University of California, Los Angeles, 90095, USA
    Biochemistry (Mosc) 79:165-77. 2014
    ..Though the biotic response to the GOE is a question new to paleobiology that is yet largely unexplored, additional evidence of its impact seems certain to be uncovered. ..
  5. doi request reprint Gypsum-permineralized microfossils and their relevance to the search for life on Mars
    J William Schopf
    Department of Earth and Space Sciences, University of California, Los Angeles, California 90095 1567, USA
    Astrobiology 12:619-33. 2012
    ..Key Words: Confocal laser scanning microscopy-Gypsum fossils-Mars sample return missions-Raman spectroscopy-Sample Analysis at Mars (SAM) instrument-Sulfuretum...
  6. pmc The paleobiological record of photosynthesis
    J William Schopf
    Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics, Center for the Study of Evolution and the Origin of Life, and Molecular Biology Institute, University of California, Los Angeles, 90095, USA
    Photosynth Res 107:87-101. 2011
    ..Though it is well established that Earth's ecosystem has been based on autotrophy since its very early stages, the time of origin of oxygenic photosynthesis, more than 2,450 million years ago, has yet to be established...
  7. doi request reprint Discovery of a new chert-permineralized microbiota in the Proterozoic Buxa Formation of the Ranjit window, Sikkim, northeast India, and its astrobiological implications
    J William Schopf
    Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics, Molecular Biology Institute, University of California, Los Angeles, California 90095, USA
    Astrobiology 8:735-46. 2008
    ..This study, the first report of Proterozoic microfossils in units of the Ranjit tectonic window, demonstrates that firm evidence of early life can be adduced from even a minuscule amount of fossil-bearing ancient rock...
  8. pmc Fossil evidence of Archaean life
    J William Schopf
    University of California, Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics Center for the Study of Evolution and the Origin of Life, Los Angeles, CA 90095, USA
    Philos Trans R Soc Lond B Biol Sci 361:869-85. 2006
    ..These compilations support the view that life's existence dates from more than or equal to 3500 Myr ago...
  9. pmc Solution to Darwin's dilemma: discovery of the missing Precambrian record of life
    J W Schopf
    Department of Earth and Space Sciences, Institute of Geophysics and Planetary Physics Center for the Study of Evolution and the Origin of Life, University of California, Los Angeles, CA 90095 1567, USA
    Proc Natl Acad Sci U S A 97:6947-53. 2000
    ....
  10. ncbi request reprint Three-dimensional confocal optical imagery of precambrian microscopic organisms
    J William Schopf
    Department of Earth and Space Sciences, University of California, Los Angeles, California 90095, USA
    Astrobiology 6:1-16. 2006
    ..Application of this technique can provide information in three dimensions about the morphology, taphonomy, and fidelity of preservation of such fossils at a spatial resolution unavailable by any other means...
  11. ncbi request reprint New method for the microscopic, nondestructive acquisition of ultraviolet resonance Raman spectra from plant cell walls
    Andrew D Czaja
    Department of Earth and Space Sciences, University of California, Los Angeles, California 90095 1567, USA
    Appl Spectrosc 60:352-5. 2006
    ..This paper extends the use of UVRR to the study on a microscopic scale of individual plant cell walls by use of the controlled micro-displacement of a sample...
  12. ncbi request reprint Morphological biosignatures and the search for life on Mars
    Sherry L Cady
    Department of Geology, Portland State University, Portland, Oregon 97201, USA
    Astrobiology 3:351-68. 2003
    ....
  13. pmc Atomic force microscopy of Precambrian microscopic fossils
    André Kempe
    Institut für Kristallographie und Angewandte Mineralogie, Center for Nanoscience, Ludwig Maximilians Universitat Munchen, Theresienstrasse 41, D 80333 Munich, Germany
    Proc Natl Acad Sci U S A 99:9117-20. 2002
    ....