Research Paper GEOSPHERE Paleoenvironments, taphonomy, and stable isotopic content of the terrestrial, fossil-vertebrate–bearing sequence of the El Disecado GEOSPHERE, v. 16, no. 4 Member, El Gallo Formation, Upper Cretaceous, Baja California, México https://doi.org/10.1130/GES02207.1 David E. Fastovsky1, Marisol Montellano-Ballesteros2, Henry C. Fricke3, Jahandar Ramezani4, Kaori Tsukui4, Gregory P. Wilson5, Paul Hall6, Rene Hernandez-Rivera2, and Geraldo Alvarez2 18 figures; 3 tables; 1 supplemental file 1Department of Geosciences, University of Rhode Island, 9 East Alumni Avenue, Kingston, Rhode Island 02881, USA 2Universidad Autónoma Nacional de México, Instituto de Geología, Ciudad Universitaria, Coyahuacán, 04510, D.F. México CORRESPONDENCE:
[email protected] 3Colorado College, Colorado Springs, Colorado 80903, USA 4Massachusetts Institute of Technology Earth, Atmospheric and Planetary Sciences, 77 Massachusetts Avenue, Bldg. 54-1116, Cambridge, Massachusetts 02139, USA 5 CITATION: Fastovsky, D.E., Montellano-Ballesteros, University of Washington, Department of Biology, Box 351800, Seattle, Washington 98195-1800, USA 6 M., Fricke, H.C., Ramezani, J., Tsukui, K., Wilson, Center for Computation and Visualization, 180 George Street, Brown University, Providence, Rhode Island 02912, USA G.P., Hall, P., Hernandez-Rivera, R., and Alvarez, G., 2020, Paleoenvironments, taphonomy, and stable iso- topic content of the terrestrial, fossil-vertebrate bear- ing sequence of the El Disecado Member, El Gallo ABSTRACT perhaps refecting an absence of permanent stand- macro vertebrados, troncos silicifcados, restos Formation, Upper Cretaceous, Baja California, México: ing water in this depositional setting. macroscópicos de plantas, y polen, la cual fue Geosphere, v. 16, no. 4, p. 991– 1011, https://doi .org The Late Campanian (Late Cretaceous), upper Here we report a high-precision U-Pb date depositada posiblemente en la parte distal de un /10.1130 /GES02207.1.