Peer-Reviewed
2025. McCool, W.C., B.F. Codding, B. Degnan, C.E. Ebert, E.S. Johnson, K.B. Vernon, K.M. Wilson, T. Beach, K.M. Prufer, D.J. Kennett. Modeling the rise and demise of Classic Maya cities: Climate, conflict, and economies of scale. PNAS 112.42 (2025): e2512325122. DOI: 10.1073/pnas.2512325122
2025. VanDerwarker, A.M., H. B. Thakar, K. Hirth, A. Domic, T. K. Harper, R. J. George, E.S. Johnson, V. Newhall, T. E. Scheffler, W. C. McCool, K. Wann, B. S. Gaut, L. Kistler, and D. J. Kennett. Early evidence of avocado domestication from El Gigante Rockshelter, Honduras. PNAS 122(10) e2417072122. DOI: 10.1073/pnas.2417072122.
2024. Kuehn, S.R., R.K. Albert, and E.S. Johnson. Ancient Foodways: Zooarchaeology and Paleoethnobotany. In Traces: An Open Introduction to Archaeology, edited by J. Donahue, I. Ray, I. Scarborough, and J. Zovar.
2020. Johnson, E.S. and J.M. Marston. The Experimental Identification of Starch Spherulites Recovered from Nixtamalized Maize Residue. Journal of Archaeological Science 113:105056. DOI:10.1016/j.jas.2019.105056.
Reports
2025. Johnson, E.S. Análisis Paleobotánicos. In Proyecto Arqueológico Suchilapan, Temporada 2024, edited by J. MacLellan and M. Garciá Hernández. DOI: http://hdl.handle.net/10339/110067.
2025. Johnson, E.S. and C. Morales-Aguilar. Análisis y Verificación en Campo de Datos LiDAR en los Bajos y Sondeos Geo-Arqueológicos en Posibles Campos Elevados en el Bajo Azúcar, Petén, Guatemala: Sondeos 3, 4 y 5. In Research Reports from the Rio Azul Regional Archaeological Project: A Report of the 2023 Field Season, Volume 2–Part B. Occasional Papers, Number 29. Center for Archaeological and Tropical Studies, UT Austin. DOI: https://doi.org/10.26153/tsw/62987.
2023. VanDerwarker, Amber, Emily S. Johnson, and Joseph Patrick. Analysis of Plant Remains from 22TA622: Report Submitted to Cultural Resource Analysts, Inc.
Conference Presentations
Society for American Archaeology 2026
Paper Presentation: Johnson, Emily S. and Amber M. VanDerwarker. "Subsistence and Settlement beyond the Olmec Heartland: Comparative Perspectives from Macrobotanical Data"
Society of Ethnobiology 2025
Poster Presentation: Johnson, Emily S. “Quantifying Change: Correction Factors for Carbonized and Desiccated Avocado Pits”
Society for American Archaeology 2025
Paper Presentation: Johnson, Emily S., A. M. VanDerwarker, and C. Pool. “Identifying Nixtamalization at Formative Period Tres Zapotes, Veracruz, Mexico”
Paper Presentation: MacLellan, J., M. Garciá Hernández, E. S. Johnson, and A. Sharpe. “Dating Early Ceremonial Centers in Southern Veracruz: Preliminary Results of the Suchilapan Archaeological Project”
Society of Ethnobiology 2024
Paper Presentation: Johnson, Emily S., Douglas Kennett, Taylor Mori, and Amber VanDerwarker. “Archaeological Insights into Nixtamalization: Tracing the Origins of Cultural Tradition”
Society for American Archaeology 2022
Paper Presentation: Johnson, Emily S., Alleen Betzenhauser, and Amber M. VanDerwarker. "Nixtamalization and Culinary Traditions at the Ancient East St. Louis Site”
Society of Ethnobiology 2017
Poster Presentation: “Elite Feasting and Monumental Dedication at Early Phrygian Gordion, Central Turkey”
Plains Anthropological Conference 2018
Poster Presentation: “Central Plains Tradition Plant Use: A Comparison of Archaeobotanical Remains from Four Itskari Phase Sites”