Publications (asterisk indicates work produced in the MIT Laboratory for Geobiology and Microbial Sedimentology, diamond indicates graduate students and postdocs from this lab):


Microbial sediments:

*McNeill, D., àMatys, E., Bosak, T. Raman spectroscopic evaluation of the thermal maturity of agglutinated foraminifera, in preparation.

*àMariotti, G., Pruss, S.B., Perron, J.T., O’Grady, M.J. and Bosak, T. Microbial shaping of wrinkle structures in siliciclastic deposits, in preparation.

*àMariotti, G., Perron, T. and Bosak, T.  Elongation of stromatolites through feedbacks between flow, sediment motion and microbial growth on sand bars, to be submitted.

*àLiang, B., Wu, T.D., Guerquin-Kern, J.L., Vali, H., Sun, H.-J., àSim, M.S., Wang, C.-H., Bosak, T. Cyanophycin mediates the accumulation and storage of carbon in non-heterocystous filamentous cyanobacteria from coniform mats, to be submitted.

*àCohen, P., àMatys, E. D., Macdonald, F. A., Pruss, S. B., and Bosak, T. Putative macroalgal fossils from the Cryogenian of Mongolia, submitted.

*àPetroff, A. P. P., Rothman, D. H., Beukes, N., and T. Bosak, Biofilm growth and fossil form, Physical Review X, in press.

*Bosak, T., àMariotti, G., Perron, J. T., Macdonald, F. A., Pruss, S. B. Microbial sedimentology of stromatolites in the Neoproterozoic cap carbonates, Ecosystems Paleobiology and Geobiology, Paleontological Special Papers, v. 19, Paleontological Society, in press.

*Bosak, T., Knoll, A. H., and A. P. P. àPetroff (2013) The meaning of stromatolites, Annual Reviews of Earth and Planetary Sciences, 41, 21-44.

*Dalton, L., Bosak, T., Macdonald, F. A., Lahr, D. G., and S. B. Pruss (2013) Preservational and morphological variability of assemblages of agglutinated eukaryotes in cap carbonates of the Rasthof Formation, northern Namibia, Palaios, 28, 67–79.

*àSim, M. S., àLiang, B., àPetroff, A. P., àEvans, A., Klepac-Ceraj, V., Walter, M. R., Flannery, D. T., and T. Bosak (2012) Oxygen-dependent morphogenesis of modern clumped photosynthetic mats and implications for the Archean stromatolite record, Geosciences,

*Bosak, T., àTempler, S., Wu, T.-D., àLiang, B., Guerquin Kern, J.-L., Mui, J., Vali, H., àEvans, A., àSim M. S., Friedman, J., and V. Klepac-Ceraj. (2012) Cyanobacterial composition and activity in modern conical microbialites, Geobiology, DOI: 10.1111/j.1472-4669.2012.00334.x.

*Bosak, T., Lahr D. J. G., Pruss, S. B., Macdonald, F. A., Gooday, A. J., Dalton, L., àMatys, E. D. (2012) Possible early foraminiferans in post-Sturtian (716-635 Ma) cap carbonates, Geology, 40, 47-50.

*àPetroff, A. P. P., Wu, T-D., àLiang, B., Mui, J., Guerquin-Kern, J.-L., Vali, H., Rothman, D. H., and T. Bosak (2011) Reaction-diffusion model of nutrient uptake in a biofilm: theory and experiment, Journal of Theoretical Biology,289, 90-95.

*Bosak, T., Lahr, D., Macdonald, F. A, àMatys, E.D. (2011) Putative Cryogenian ciliates from Mongolia, Geology, 39, 1123-1126.

*Bosak, T., Lahr, D., Pruss, S. B., Macdonald, F. A., Dalton, L. and àMatys, E. (2011) Agglutinated tests in post-Sturtian cap carbonates from Namibia and Mongolia, Earth and Planetary Science Letters, 308, 29-40, doi:10.1016/j.epsl.2011.05.030.

*Bosak, T.  (2011) Microbial contribution to the precipitation of calcium carbonate minerals,  Encyclopedia of Geobiology, H.W. Fritz, J. Reitner, A. Kappler, V. Thiel, K. Konhauser, P. Reid, X. Zhang (editors), Springer Verlag, Germany.

Pruss, S. B., Bosak, T., Macdonald, F. A., McLane, M., P. F. Hoffman (2010) Microbial facies in a Sturtian cap carbonate, the Rasthof Formation, Otavi Group, northern Namibia, Precambrian Research, 181, 187-198.

*àPetroff, A. P., àSim, M. S., Maslov, A., Krupenin, M., Rothman, D. H., and T. Bosak (2010) Biophysical basis for the geometry of conical stromatolites, Proceedings of the National Academy of Sciences of the U.S.A., 107, 9956-9961.

*Bosak, T., Bush, J., Flynn, M., àLiang, B., Ono, S., àPetroff, A. P., and àM. S. Sim (2010) Formation and stability of oxygen-rich bubbles that shape photosynthetic mats, Geobiology, 8, 45-55.

*Bosak, T., àLiang, B., àSim, M. S., and àA. P. Petroff (2009) Morphological record of oxygenic photosynthesis in conical stromatolites, Proceedings of the National Academy of Sciences of the U.S.A., 106, 10939-10943.

Maloof, A. C., Kopp, R. E., Grotzinger, J. P., Fike, D. A., Bosak, T., Vali, H., Poussart, P. M., Weiss, B. P. and J. L. Kirschvink (2007) Sedimentary iron cycling and the origin and preservation of magnetization in platformal carbonate muds, Andros Island, Bahamas, Earth and Planetary Science Letters, 259, 581-598.

Bosak, T., Greene, S., and D.K. Newman (2007) A likely role for anoxygenic photosynthetic microbes in the formation of ancient stromatolites, Geobiology, 5, 119-126.

Bosak, T. and D. K. Newman (2005) Microbial kinetic controls on calcite morphology in supersaturated solutions, Journal of Sedimentary Research, 75, 190-199.

Bosak, T., Souza-Egipsy, V., and D. K. Newman (2004) An abiotic model for peloid formation, Geobiology, 2, 189-198.

Bosak, T., Souza-Egipsy, V., Corsetti, F.A., and D. K. Newman (2004) Micron-size porosity as a biosignature in carbonate crusts, Geology, 32, 781-784.

Bosak, T. and D. K. Newman (2003) Microbial nucleation of calcium carbonate in the Precambrian, Geology, 31, 577-580.


Microbial sulfate reduction:

Antler, G., T. Bosak, S. Ono, O. Sivan and A.V. Turchyn. Coupled 33S, 34S and 18O signatures of microbial sulfate reduction, in preparation.


àSim, M. S., àWang, D. T., Semkiw, E. S., Jane, G. M., Wall, J. D., Bosak, T. and S. Ono (2013) Fractionation of sulfur isotopes by Desulfovibrio vulgaris mutants lacking hydrogenases or type I tetraheme cytochrome c3, Frontiers in Microbiological Chemistry, 4: doi: 10.3389/fmicb.2013.00171.

*àSim, M.S., Bosak, T., and S. Ono (2012) Effects of iron and nitrogen limitation on sulfur isotope fractionation during microbial sulfate reduction, Applied and Environmental Microbiology, doi:10.1128/AEM.01842-12

*àSim, M. S., Bosak, T. and S. Ono (2011) Large sulfur isotope fractionation does not require disproportionation, Science, 333, 74-77.

*àSim, M. S., Donovan, K. A., Ono, S., Templer, S. P. and T. Bosak (2011) Effect of electron donors on the fractionation of sulfur isotopes by a marine Desulfovibrio sp., Geochimica et Cosmochimica Acta, 75, 4244-4259,



àMeredith, L. K., Rao, D., Bosak, T., Hansell, C. M., Ono, S., Prinn, R. G., Consumption of atmospheric H2 during the life cycle of soil-dwelling Actinobacteria, in revision.

Brocks, J. J., Bosak, T., and A. Pearson (2009) Oligoprenyl-curcumanes and other new aromatic isoprenoids from the 1.64 billion years old Barney Creek Formation, Organic Geochemistry, 40, 795-801.

Kontnik, R., Bosak, T., Butcher, R. A., Brocks, J. J., Losick, R., Clardy, J., and A. Pearson (2008) Sporulenes, heptaprenyl metabolites from Bacillus subtilis spores, Organic Letters, 10, 3551-3554.

Bosak, T., Losick, R. and A. Pearson (2008) A polycyclic terpenoid that alleviates oxidative stress, Proceedings of the National Academy of Sciences of the U.S.A., 105, 6725-6729.

Bosak, T. and A. P. Ingersoll (2002) Shear instabilities as a probe of Jupiter’s atmosphere, Icarus, 158, 401-409.


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