Publications

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Perez-Angel, L. C., Sepúlveda, J., Molnar, P., Mora-Paez, H., Parrado, A., Eaman, K., Russell, J. M., Rajagopalan, B., González-Arango, C., Snell, K. E., Montes, C., Crowley, J. L., Schmitz, M. D., Trayler, R. B., (2026) Evolution of Pliocene-Pleistocene Tropical Terrestrial Temperature Amplification: Proceedings of the National Academy of Sciences

Stiles, E., Gelfo, J. N.,Raigemborn, M. S., Kohn, M. J., Canares, B. A. D., Trayler, R. B., Ibañez-Mejía, M., Erra, G., Goin, F., Ströberg, C. A. E., (2025) Phytoliths reveal Paleocene–Eocene forest expansions preceded dryland vegetation in southern South America: Geological Society of America Bulletin, doi.org/10.1130/B38275.1 📄 🗄
Palefsky, G., Lertcharnrit, T, Trayler, R. B., Lopes, L. E., Kim, S. L., (2025) Ancient Skeletons In Situ: Evaluating Bone Diagenesis at an Open-Air Archaeological Site and Community Museum in Central Thailand: The Journal of Archaeological Method and Theory 📄 🗄

Larocca Conte, G., Aleksinski, A., Liao, A., Kriwet J., Mörs, T., Trayler, R. B., Ivany, L. C., Huber, M., Kim, S. L., (2024) A proximal perspective to the Eocene Drake Passage: environmental reconstruction and habitat use based on δ¹⁸O of fossil shark teeth from Seymour Island, Antarctica: Paleoceanography and Paleoclimatology 📄 🗄
Trayler, R. B., Lopes, L. E., Holroyd, P. A., Kim, S. L., Southon, J. R., (2024) Rapid, Effective Screening of Tar Seep Fossils for Radiocarbon and Stable Isotope Analysis: Quaternary Geochronology, v. 85, 🧑🏼‍💻 📄 🗄
Trayler, R. B., Meyers, S. R., Sageman, B. B., Schmitz, M. D., (2024), Bayesian Integration of Astrochronology and Radioisotope Geochronology: Geochronology, v. 6, p. 107–123, doi:10.5194/gchron-6-107-2024 📄 🧑🏼‍💻 🗄 📦
Larocca Conte, G., Lopes, L. E., Mine, A. H., Trayler, R. B., Kim, S. L., (2024) SPORA, a new silver phosphate precipitation protocol for oxygen isotope analysis of small, organic-rich bioapatite samples: Chemical Geology 📄 🗄

Griffiths, M.L., Eagle, R.A., Kim, S. L., Flores, R., Becker, M.A., Maisch, H.M., Trayler, R. B., Chan, R., McCormack, J., Akhtar, A.A., Tripati, A.K., Shimada, K. (2023), Thermal physiology of extinct megatooth sharks, Proceedings of the National Academy of Sciences, Vol. 120 No. 27 p. e2218153120 📄 🧑🏼‍💻 🗄
Li, Y., Qin H., Jicha, B., Huyskens, M., Wall C., Trayler R. B., Yin Q., Schmitz M. D., Pan, Y, Deng, C., Singer B., He, H., Zhu, R., (2023), Revised onset age of magnetochron M0r: Chronostratigraphic and geologic implications: Geology 📄 🗄
Trayler, R. B., Valencia Landa, P., Kim, S. L., (2023) Evaluating the Efficacy of Collagen Isolation Using Stable Isotope Analysis and Infrared Spectroscopy, Journal of Archaeological Science, v. 151 p. 105727 📄 🧑🏼‍💻 🗄
Holliday M. E., Rivera, T., Jicha, B., Trayler, R. B., Biek R. F., Braunagel, M. J., Griffith, W. A., Hacker, D. B., Malone, D. H., Mayback, D. F. (2023), Emplacement age of the Markagunt Gravity Slide in Southwestern Utah, USA, Terra Nova, v. 35(1), p. 66-72 📄 🧑🏼‍💻 🗄

Pozo Buil, M., Ianiri, H., Carroll, S. L., & Trayler, R. B. (2022). ClimateWEST: A climate science activity. In S. Seagroves, A. Barnes, A. J. Metevier, J. Porter, & L. Hunter (Eds.), Leaders in effective and inclusive STEM: Twenty years of the Institute for Scientist & Engineer Educators (pp. 291–304). UC Santa Cruz: Institute for Scientist & Engineer Educators 📄 🗄
Harrigan C. O., Schmitz M. D., Trayler, R. B., Over, D. J., (2022), Recalibrating the Devonian timescale: New high precision U-Pb zircon ages and a method for integrating radioisotopic ages, conodont biostratigraphy, and astrochronology for timescale modeling: Geological Society of America Bulletin. v. 134, p. 1931-1948 📄 🧑🏼‍💻 🗄

Landry, Z., Kim, S., Trayler, R.B., Gilbert, M., Zazula, G., Southon, J., and Fraser, D., (2021), Dietary reconstruction and evidence of prey shifting in Pleistocene and recent gray wolves (Canis lupus) from Yukon Territory: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 571, p. 110368, doi:10.1016/j.palaeo.2021.110368. 📄 🗄
Landing, E., Schmitz, M.D., Geyer, G., Trayler, R.B., and Bowring, S.A., (2021), Precise early Cambrian U–Pb zircon dates bracket the oldest trilobites and archaeocyaths in Moroccan West Gondwana: Geological Magazine, v. 158(2), p. 219–238. 📄 🗄

Trayler, R.B., Kohn, M.J., Bargo, M.S., Cuitiño, J.I., Kay, R.F., Strömberg, C.A., and Vizcaíno, S.F., (2020), Patagonian Aridification at the Onset of the Mid‐Miocene Climatic Optimum: Paleoceanography and Paleoclimatology, v. 35, p. e2020PA003956. 📄 🗄
Drewicz, A.E., Trayler, R.B., Hollaway, M., Harrigan, C.O., and Kohn, M.J., (2020), The interpretability of stable hydrogen isotopes in modern herbivore tooth enamel: Geochimica et Cosmochimica Acta, v. 270, p. 84–94. 📄 🗄

Trayler, R.B., Schmitz, M.D., Cuitiño, J.I., Kohn, M.J., Bargo, M.S., Kay, R.F., Strömberg, C.A.E., and Vizcaíno, S.F., (2019), An Improved Approach To Age-Depth Modeling In Deep Time: Implications For The Santa Cruz Formation, Argentina: Geological Society of America Bulletin, v. 132, p. 233–244.📄 🧑🏼‍💻 🗄

Daggers, L., Plew, M.G., Edwards, A., Evans, S., and Trayler, R.B., (2018), Assessing The Early Holocene Environment Of Northwestern Guyana: An Isotopic Analysis Of Human And Faunal Remains: Latin American Antiquity, p. 1–14, doi:doi:10.1017/laq.2017.87. 📄 🗄

Trayler, R.B., and Kohn, M.J., (2017), Tooth enamel maturation reequilibrates oxygen isotope compositions and supports simple sampling methods: Geochimica et Cosmochimica Acta, v. 198, p. 32–47, doi:10.1016/j.gca.2016.10.023. 📄 🗄

Cuitiño, J.I., Fernicola, J.C., Kohn, M.J., Trayler, R.B., Naipauer, M., Bargo, M.S., Kay, R.F., and Vizcaíno, S.F., (2016), U-Pb geochronology of the Santa Cruz Formation (early Miocene) at the Río Bote and Río Santa Cruz (southernmost Patagonia, Argentina): Implications for the correlation of fossil vertebrate localities: Journal of South American Earth Sciences, v. 70, p. 198–210, doi:doi: 10.1016/j.jsames.2016.05.007. 📄 🗄

Trayler, R.B., Dundas, R.G., Fox-Dobbs, K., and Van De Water, P.K., (2015), Inland California during the Pleistocene—Megafaunal stable isotope records reveal new paleoecological and paleoenvironmental insights: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 437, p. 132–140, doi:10.1016/j.palaeo.2015.07.034. 📄 🗄

Fox-Dobbs, K., Dundas, R.G., Trayler, R.B., and Holroyd, P.A., (2014), Paleoecological implications of new megafaunal ¹⁴C ages from the McKittrick tar seeps, California: Journal of Vertebrate Paleontology, v. 34, p. 220–223.📄 🗄

Trayler, R.B., and Dundas, R.G., (2009), American Mastodon (Mammut americanum) in the Rancho La Brea Collection of the University of California Museum of Paleontology: Current Research in the Pleistocene, v. 26, p. 184–186. 📄 🗄