Ammonite taxonomy and biostratigraphy for the upper Aptian-lower Albian (Lower Cretaceous) of Cerro Chino, Chihuahua State, northeast Mexico
| Autor: | M. Franco-Rubio, Josep Anton Moreno-Bedmar, Keith P. Minor, Emmanuel Robert, Pedro Patarroyo, Angélica Oviedo, J.R. Ovando-Figueroa |
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| Přispěvatelé: | Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement (LGL-TPE), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Université Jean Monnet - Saint-Étienne (UJM)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Géologie de Lyon - Terre, Planètes, Environnement [Lyon] (LGL-TPE), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École normale supérieure - Lyon (ENS Lyon) |
| Rok vydání: | 2018 |
| Předmět: |
Chihuahua
Ammonite 010506 paleontology Aptian biology Fauna Douvilleiceras Paleontology Albian Biostratigraphy 010502 geochemistry & geophysics biology.organism_classification 01 natural sciences Cretaceous language.human_language Ammonites [SDU]Sciences of the Universe [physics] language Taxonomy (biology) Mexico Geology 0105 earth and related environmental sciences |
| Zdroj: | Cretaceous Research Cretaceous Research, 2018, 82, pp.109--137. ⟨10.1016/j.cretres.2017.10.007⟩ |
| ISSN: | 0195-6671 |
| DOI: | 10.1016/j.cretres.2017.10.007 |
| Popis: | In this paper we study the ammonoid taxonomy and biostratigraphy from the upper Aptian to the lower Albian of the Cerro Chino area, with an emphasis on an accurate taxonomic characterization of the American endemic forms Kazanskyella, Quitmanites, Immunitoceras and Huastecoceras. These genera are important because they are characteristic of the unique ammonite fauna of the Central Atlantic province. In a critical taxonomic study of these endemic forms, we review numerous holotypes and other specimens that are currently housed in several collections in the United States and Mexico. Based on our analysis, we propose a local zonation from the upper Aptian to the lower Albian, with three ammonoid zones (Kazanskyella minima, Hypacanthoplites sp. and Douvilleiceras sp.), based on the Cerro Chino sections. This newly proposed zonation constitutes a step forward in the development of the standard Central Atlantic province ammonoid zonation, particularly because biostratigraphic data for this province during this time span are very scarce. In general, the uppermost Aptian ammonoid record worldwide is scarce and/or condensed, and so the fauna preserved at this location is significant, making the contribution here even more important. In this work, we are not able to pin down the position of the Aptian/Albian boundary based solely on the ammonoids from these sections. (c) 2017 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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