About the Authors

Esther J. Lee

esther.lee@ttu.edu

Current address: Department of Sociology, Anthropology, and Social Work, Texas Tech University, Lubbock, TX, United States of America

Affiliations Department of Anthropology, Binghamton University, Binghamton, NY, United States of America, Department of Sociology, Anthropology, and Social Work, Texas Tech University, Lubbock, TX, United States of America

D. Andrew Merriwether

Affiliation Department of Anthropology, Binghamton University, Binghamton, NY, United States of America

Alexei K. Kasparov

Affiliation Institute for the History of Material Culture, Russian Academy of Sciences, St. Petersburg, Russia

Pavel A. Nikolskiy

Affiliation Geological Institute, Russian Academy of Sciences, Moscow, Russia

Marina V. Sotnikova

Affiliation Geological Institute, Russian Academy of Sciences, Moscow, Russia

Elena Yu Pavlova

Affiliation Arctic and Antarctic Research Institute, St. Petersburg, Russia

Vladimir V. Pitulko

Affiliation Institute for the History of Material Culture, Russian Academy of Sciences, St. Petersburg, Russia

Competing Interests

The Ford Motor Company aided in the research of the Aachim Lighthouse site. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: DAM VVP. Performed the experiments: EJL DAM. Analyzed the data: EJL DAM. Contributed reagents/materials/analysis tools: EJL DAM AKK PAN MVS EYP VVP. Wrote the paper: EJL DAM PAN MVS VVP.