J. Toporski

Searching for Life on Mars: Selection of Molecular Targets for ESA's Aurora ExoMars Mission

John Parnell, David C. Cullen, M. R. Sims et al. · Astrobiology · 2007 · 193 citations · Full text

Engineering, Molecular Targets, Organic Geochemistry +19

Soft-Tissue Vessels and Cellular Preservation in <i>Tyrannosaurus rex</i>

Mary H. Schweitzer, Jennifer L. Wittmeyer, John R. Horner et al. · Science · 2005 · 158 citations · Full text

Biology, Mechanobiology, Gross Anatomy +14

The Simulated Silicification of Bacteria— New Clues to the Modes and Timing of Bacterial Preservation and Implications for the Search for Extraterrestrial Microfossils

J. Toporski, A. Steele, Francès Westall et al. · Astrobiology · 2002 · 142 citations

Polymeric substances and biofilms as biomarkers in terrestrial materials: Implications for extraterrestrial samples

Francès Westall, A. Steele, J. Toporski et al. · Journal of Geophysical Research Atmospheres · 2000 · 131 citations · Full text

Biofilms, Organic Geochemistry, Extraterrestrial Samples +15

Morphologic and spectral investigation of exceptionally well-preserved bacterial biofilms from the Oligocene Enspel formation, Germany

J. Toporski, A. Steele, Francès Westall et al. · Geochimica et Cosmochimica Acta · 2002 · 122 citations

Microbial Diversity, Oligocene Enspel Formation, Spectral Investigation +6