Cambrian Biostratigraphy in Mexico
Article Sidebar
Main Article Content
Abstract
The Cambrian in Mexico crops out only in the states of Sonora and Oaxaca, as isolated and sporadic sequences, but with a relatively well-preserved fossil biota. Recent studies in trilobite biostratigraphy of the Cambrian of Mexico show that the biostratigraphic column for this system in the state of Sonora is well represented, mainly from the Terreneuvian to the early Furongian, and comprising the pre-trilobite interval, and Fritzaspis Zone to the Elvinia Zone. In the state of Oaxaca only the Saukia Zone (Furongian) is known. This indicates that the late Cambrian (Furongian) corresponds to the least known part of the Cambrian in Mexico.
Article Details
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
References
González-León, C., 1986, Estratigrafía del Paleozoico de la Sierra del Tule, noreste de Sonora: Universidad Nacional Autónoma de México, Instituto de Geología, Revista Mexicana de Ciencias Geológicas, 6(2), 117–135.
Landing, E.D., Westrop, S.R., Keppie, J.D., 2007, Terminal Cambrian and lowest Ordovician succession of Mexican West Gondwana: biotas and sequence stratigraphy of the Tiñu Formation: Geo-logical Magazine, 144(6), 909–936. DOI https://doi.org/10.1017/S0016756807003585
Lochman-Balk, C., Wilson, J.L., 1958, Cambrian biostratigraphy in North America: Journal of Paleontology, 312–350.
Lochman, C., 1948, New Cambrian trilobite genera from northwest Sonora, Mexico: Journal of Paleontology, 22, 451–464.
Noriega-Ruiz, H.A., Cuen-Romero, F.J., Enríquez-Ocaña, L.F., Sund-berg, F.A., Monreal, R., Varela-Romero, A., Palafox-Reyes, J.J, Grijalva-Noriega, F.J., 2020, Cambrian stratigraphy (Series 2 to Miaolingian) of the El Sahuaral area in central Sonora, Mexi-co: Biostratigraphic implications: Journal of South American Earth Sciences, 103 102797.DOI https://doi.org/10.1016/j.jsa-mes.2020.102797
Pantoja-Alor, J., 1970, Rocas sedimentarias paleozoicas de la región centro–septentrional de Oaxaca: Sociedad Geológica Mexica-na, Libro guía de la excursión México–Oaxaca: México, 67–84.
Pantoja-Alor, J., Robison, R.A., 1967, Paleozoic sedimentary rocks in Oaxaca, Mexico: Science, 157(3792), 1033–1035. DOI https://doi.org/10.1126/science.157.3792.1033
Peng, S.C., Babcock, L.E., Ahlberg, P., 2020, The Cambrian Period, en Gradstein, F.M., Ogg, J.G., Schmitz, M.D., Ogg, G.M. (eds.): Geologic time scale 2020, Elsevier, 565–629.
Robison, R.A., Pantoja-Alor, J., 1968, Tremadocian trilobites from the Nochixtlán region, Oaxaca, Mexico: Journal of Paleontology, 767–800. https://www.jstor.org/stable/1302374
Stewart, J.H., McMenamin, A.S., Morales-Ramirez, J.M., 1984, Upper Proterozoic and Cambrian Rocks in the Caborca Region, So-nora, México: Physical Stratigraphy, Biostratigraphy, Paleo-current Studies and Regional Relations, US Geological Survey Professional Paper 1309, 1–36.
Streng, M., Mellbin, B.B., Landing, E., Keppie, J.D., 2011, Linguli-form brachiopods from the terminal Cambrian and lowest Ordovician of the Oaxaquia microcontinent (southern Mexi-co): Journal of Paleontology, 85(1), 122–155. DOI https://doi.org/10.1666/10-074.1
Sundberg, F.A., Cuen-Romero, F.J., 2021, Trilobites from the Crepicephalus Zone (upper Guzhangian Stage, Miaolingian Se-ries, Cambrian) from northern Sonora, Mexico, and its corre-lation to Arizona and Texas, USA: Journal of South American Earth Sciences, 108, 103185. DOI https://doi.org/10.1016/j.jsa-mes.2021.103185
Sundberg, F.A., 1994, Corynexochida and Ptychopariida (Trilobita, Arthropoda) of the Ehmaniella Biozone (Middle Cambrian), Utah and Nevada: Contributions in Science, 446, 1–137. DOI https://doi.org/10.5962/p.208082
Vega-Granillo, R., 1996, Geología de la Sierra de Mazatán: Boletín del Departamento de Geología, Universidad de Sonora, 13(1), 89–102.
Von Siebold, C.T., 1848, Lehrbuch der vergleichenden Anatomie der Wirbellosen Thiere: Lehrbuch der vergleichenden Anato-mie Erster Theil, 1, 1–679. DOI https://doi.org/10.5962/bhl.tit-le.118645
Webster, M., 2011, Trilobite biostratigraphy and sequence stratigra-phy of the upper Dyeran (Traditional Laurentian “lower Cam-brian”) in the southern Great Basin, U.S.A., en Hollingsworth, J.S., Sundberg, F.A., Foster, J.R. (eds.), Cambrian Stratigraphy and Paleontology of Northern and Southern Nevada, Western Nevada and Eastern California: Museum of Northern Arizona, Bulletin, 67, 121–154.