Vidal, N., Rage, J.-C., Couloux, A. & Hedges, S.B. (2009). Snakes (Serpentes). In: S.B. Hedges & S. Kumar (Eds.). The timetree of life (pp. 000-000). New York: Oxford University Press.
Vidal, N., Azvolinsky, A., Cruaud, C. & Hedges, S.B. (2008). Origin of tropical American burrowing reptiles by transatlantic rafting. Biology Letters, 4:115-118.
Heinicke, M.P., Sander, J.M. & Hedges, S.B. (2009). Lungfishes (Dipnoi). In: S.B. Hedges & S. Kumar (Eds.). The timetree of life (pp. 000-000). New York: Oxford University Press.
Heinicke, M.P., Naylor, G.P. & Hedges, S.B. (2009). Cartilaginous fishes (Chondrichthyes). In: S.B. Hedges & S. Kumar (Eds.). The timetree of life (pp. 000-000). New York: Oxford University Press.
Hedges, S.B. & Vidal, N. (2009). Lizards, snakes, and amphisbaenians (Squamata). In: S.B. Hedges & S. Kumar (Eds.). The timetree of life (pp. 000-000). New York: Oxford University Press.
Hedges, S.B. & Kumar, S. (2009). Discovering the timetree of life. In: S.B. Hedges & S. Kumar (Eds.). The timetree of life (pp. 000-000). New York: Oxford University Press.
Hedges, S.B. (2009). Vertebrate (Vertebrata). In: S.B. Hedges & S. Kumar (Eds.). The timetree of life (pp. 000-000). New York: Oxford University Press.
Hedges, S.B. (2008). At the lower limit of size in snakes: two new species of threadsnakes (Squamata: Leptotyphlopidae: Leptotyphlops) from the Lesser Antilles. Zootaxa, 1841:1-30.
Bhattacharya, D., Yoon, H.S., Hedges, S.B. & Hackett, J.D. (2009). Eukaryotes (Eukaryota). In: S.B. Hedges & S. Kumar (Eds.). The timetree of life (pp. 000-000). New York: Oxford University Press.
Battistuzzi, F.U. & Hedges, S.B. (2009). Eubacteria. The timetree of life (pp. 000-000). New York: Oxford University Press.
Battistuzzi, F.U. & Hedges, S.B. (2009). Archaebacteria. The timetree of life (pp. 000-000). New York: Oxford University Press.
Heinicke, M.P., Duellman, W.E. & Hedges, S.B. (2007). Major Caribbean and Central American frog faunas originated by oceanic dispersal. Proceedings of the National Academy of Sciences (USA), 104:10092-10097.
Hedges, S.B., Dudley, J. & Kumar, S. (2006). TimeTree: a public knowledge-base of divergence times among organisms.
Bioinformatics, 22(23):2971-2972 [
Online].
Hedges, S.B., Battistuzzi, F.U. & Blair, J.E. (2006). Molecular timescale of evolution in the Proterozoic. In: S. Xiao & A.J. Kaufman (Eds.). Neoproterozoic geobiology and paleobiology (pp. 199-229). New York: Springer.
Vidal, N. & Hedges, S.B. (2005). The phylogeny of squamate reptiles (lizards, snakes, and amphisbaenians) inferred from nine nuclear protein-coding genes. Comptes Rendus Biologies, 328:1000-1008.
Kumar, S. & Hedges, S.B. (2005). Pushing back the expansion of introns in animal genomes. Cell, 123:1182-1184.
Hedges, S.B., Kumar, S. & t al., e. (2006). Constraining fossil calibrations for molecular clocks. Bioessays, 28:770-771.
Hedges, S.B. & Dudley, J.(2006)TimeTree: a public knowedge-base of divergence times among organisms (www.timetree.net). U.S.A., Pennsylvania and Arizona State Universities. [Online]
Hedges, S.B., Battistuzzi, F.U. & t al., e. (In press, 2006). Molecular timescale of evolution in the Proterzoic.. In: S. Xiao & A.H. Kaufman (Eds.). Neoproterozoic geobiology and paleobiology. New York: Springer.
Hedges, S.B. (2006). Singularities: landmarks on the pathways of life. Quarterly Review of Biology, 81:164.
Blair, J.E. & Hedges, S.B. (2005). Molecular phylogeny and divergence times of deuterostome animals. Molecular Biology and Evolution, 22:2275-2284.
Hedges, S.B. & Lake, J.A. (2005). Evolutionary Genomics Focus Group. [Abstract]. NASA Astrobiology Institute Biennial Meeting, 5:177.
Blair, J.E., Shah, P. & Hedges, S.B. (2005). Evolutionary sequence analysis of complete eukaryote genomes.
BMC Bioinformatics, 6(1):53 [
Online].
Blair, J.E. & Hedges, S.B. (2005). Molecular clocks do not support the Cambrian explosion.
Mol Biol Evol, 22(3):387-90 [
Online].
Blair, J.E. & Hedges, S.B. (2005). Molecular Phylogeny and Divergence Times of Deuterostome Animals.
Mol Biol Evol, in press [
Online].
Battistuzzi, F.U., Feijao, A. & Hedges, S.B. (2004). A genomic timescale of prokaryote evolution: insights into the origin of methanogenesis, phototrophy, and the colonization of land.
BMC Evol Biol, 4(1):44 [
Online].
Hedges, S.B., Blair, J.E., Venturi, M.L., Boone, D.N. & Shoe, J.L. (2002). Temporal constraints on the origin of complex multicellular life [Abstract: NASA Astrobiology Institute General Meeting 2003]. Astrobiology, 2(4): Abstract #13032.
Hedges, S.B. (2002). Multiprotein evolutionary analyses of diverse eukaryotes [Abstract]. U.S. Department of Energy, 12th International Workshop: Beyond the Identification of Transcribed Sequences, Vienna, Virginia. Abstracts of Papers (p. 40).
Hedges, S.B. (In Press, 2002). Timing the transition from unicellular to multicellular life on Earth with molecular clocks. In: R. Norris (Ed.). IAU Symposium, Vol. 213, Bioastronomy 2002: Life Among the Stars, 8-12 July 2002, Great Barrier Reef, Australia. San Francisco, CA: Astronomical Society of the Pacific.
Hedges, S.B. & Shah, P. (Submitted, 2003). Comparison of mode estimation methods and application in molecular clock analysis. [Journal name not known].
Hedges, S.B. (In Press, 2003). Molecular clocks and a biological trigger for the Neoproterozoic snowball Earths and Cambrian explosion. In: P. Donoghue & P. Smith (Eds). Telling Evolutionary Time: Molecular Clocks and the Fossil Record. London, England: Taylor and Francis.
Hedges, S.B. & Kumar, S. (2003). Genomic clocks and evolutionary timescales. Trends in Genetics, 19: 200-206.
Hedges, S.B. (2002). [Review of the book, Early Life, by L. Margulis]. Quarterly Review of Biology, 77: 445.
Vidal, N. & Hedges, S.B. (2002). Higher-level relationships of caenophidian snakes inferred from four nuclear and mitochondrial genes. Comptes Rendus Biologies, 325: 987-995.
Vidal, N. & Hedges, S.B. (2002). Higher-level relationships of snakes inferred from four nuclear and mitochondrial genes. Comptes Rendus Biologies, 325: 977-985.
Hedges, S.B. (2002). The origin and evolution of model organisms. Nature Reviews Genetics, 3: 838-849.
Hedges, S.B. & Kumar, S. (2002). Vertebrate genomes compared. Science, 297: 1283-1285.
Email sbh1@psu.edu Institution Pennsylvania State University Telephone 814-865-9991 Fax 814-865-9131 Address 208 Mueller Lab
