Daniel R. Green

Daniel Green received his Ph.D. in Human Evolutionary Biology from Harvard University, where he investigated methods of reconstructing seasonal climate using the chemistry and anatomy of mammalian dentition. As an Earth Institute Postdoctoral Researcher, Daniel is contributing to reconstructions of seasonal environments in east Africa over the last the 30 million years that shaped the evolution of African fauna, including African great apes, and human ancestors. Daniel’s research relies upon stable light isotope geochemistry, trace metal analyses, microscopy, and physiological modeling. You can learn more about Daniel's research at www.danielrgreen.org.

Fields of Interest

Evolutionary biology, paleoanthropology, stable isotope ecology, dental biology


Ph.D., May 2017
Harvard University, Department of Human Evolutionary Biology                
Laboratory of Tanya M. Smith
Dissertation Title: Reconstructing oxygen isotope seasonality in large herbivores through mineralization modeling, experimentation and optimization

A.M., May 2012
Harvard University, Department of Human Evolutionary Biology

B.S., May 2008
University of Michigan
Majors in Anthropology–Zoology, History, French and Francophone Studies
Minor in Biology

Honors & Awards

Earth Institute Postdoctoral Research Fellowship, 2021 –

Earth Institute at Columbia University – competitive fellowship

How does orbital forcing affect rainfall seasonality? A case study in the Pleistocene East African Rift System with implications for human evolution.

Awarded $157,000


Australian Research Council Discovery Project, 2021 – 2022

Constructing robust climate proxies to explore human and primate evolution

Jointly awarded with Tanya Smith and Ian Williams.

Grant total $349,765


Australian Academy of Science Regional Collaborations Programme, 2019 – 2021

Tracing Ancient Environments During the Peopling of Southeast Asia

Jointly awarded with Tanya Smith, Ian Williams and Hallie Buckley, and Tanya Smith as lead PI.

Grant total $79,000


American School of Prehistoric Research, 2019

Systematics of east African fossil herbivore dentitions through neural network-based image processing

Awarded $3,500


National Institutes of Health Postdoctoral Training Fellowship, 2018 – 2019

Forsyth Institute Internal Competitive T90 Application

Inferring toxicant exposure timing and magnitude from human deciduous teeth

Awarded $144,000


Forsyth Institute Pilot Grant, 2017 ­– 2019

Inferring toxin exposure timing and magnitude from deciduous teeth

Awarded $7,830


Leakey Foundation General Grant, 2014 – 2017

Plio-Pleistocene Seasonal Precipitation through isotopes in Bovid molars, West Turkana

Awarded $12,000


Wenner-Gren Foundation Dissertation Grant, 2014 – 2016

Experimental Reconstruction of Seasonal Rainfall for Paleoclimate Research

Awarded $18,810


National Science Foundation Doctoral Dissertation Improvement Grant, 2012 – 2014

Experimental Determination of Tooth Mineralization Patterns in Ungulates for Application to Paleoseasonality Reconstruction

Awarded $19,855


National Science Foundation Graduate Research Fellowship, 2011 – 2014

A New Isotopic Sampling Method Combining Microtomography and Histology: Signal Distortion through Sampling Technique and Diagenesis

Awarded $90,000


Harvard University Committee on African Studies Summer Research Grant, 2012

Plio-Pleistocene Seasonal Precipitation through isotopes in Bovid molars, West Turkana

Awarded $5,000


European Synchrotron Radiation Facility Research Award, 2012

Determination of Enamel Mineralization Pattern by Scans of Successive Developmental Stages With Application for Study of Paleoecology

Awarded: 3 days beam time, est. $10,000/day

Smith TM, Austin C, Cook L, Dirks W, Green DR, Arora M (2021) Biological rhythms and chemical records in teeth reveal juvenile diet, health, and neurotoxicant exposures retrospectively. In Press, Bioessays.

Merceron G, Berlioz E, Vonhof H, Green DR, Garel M, Noûs C, Tütken T (2021) Tooth tales told by dental diet proxies: an alpine community of sympatric ruminants as a model to decipher the ecology of fossil fauna. Palaeogeography, Palaeoclimatology, Palaeoecology 562:110077.

Stifler CA, Jakes J, North JD, Green DR, Weaver JC, Gilbert PU (2021) Crystal misorientation correlates with hardness in tooth enamels. Acta Biomaterialia 120:124-3.

Green DR, Hardt M, Schulte F, Lee K-H, Pugach MK, Bidlack FB (2019) Mapping the Tooth Enamel Proteome and Amelogenin Phosphorylation Onto Mineralizing Porcine Tooth Crowns. Frontiers in Physiology 10:925.

Goodson JM, Hardt M, Hartman M-L, Alqaderi H, Green DR, Tavares M, Mutawa A-L, Ariga J, Soparkar P, Behbehani J, Behbehani K (2019) Salivary N1-Methyl-2-pyridone-5-carboxamide, a biomarker for uranium uptake, in Kuwaiti children exhibiting exceptional weight gain. Frontiers in Endocrinology 10:382.

Smith TM,* Austin C*, Green DR*, Joannes-Boyau R*, Bailey S, Dumitriu D, Fallon S, Grün R, James HF, Moncel M-H, Williams IS, Wood R, Arora M (2018) Wintertime stress, nursing, and lead exposure in Neanderthal children. Science Advances 4: eaau9483 *These authors contributed equally to this work.

Green DR, Smith TM, Green GM, Bidlack FB, Tafforeau P, Colman AS (2018) Quantitative reconstruction of seasonality from stable isotopes in teeth. Geochimica et Cosmochimica Acta 235:483–504.

Green DR, Olack G, Colman AS (2018) Determinants of blood water δ18O variation in a population of experimental sheep: implications for paleoclimate reconstruction. Chemical Geology 485:32-43.

Green DR, Green GM, Bidlack FB, Colman AS, Tafforeau P, Smith TM (2017) Synchrotron imaging and Markov Chain Monte Carlo reveal tooth mineralization patterns. PLoS ONE 12(10): e0186391.

Cho S, Huang ZY, Green DR, Smith DR, Zhang J (2006) Balancing selection generates trans-species polymorphisms at the complementary sex-determination locus of honey bees. Genome Research 16:1366-1375.