Upper Hauterivian nautiloids and associated invertebrate assemblage from the Barranco de la Muela section (southeastern Spain): Systematic, biostratigraphic and palaeoenvironmental implications

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Title: Upper Hauterivian nautiloids and associated invertebrate assemblage from the Barranco de la Muela section (southeastern Spain): Systematic, biostratigraphic and palaeoenvironmental implications
Authors: Barroso-Barcenilla, Fernando | Berrocal-Casero, Mélani | Callapez, Pedro M. | Company, Miguel | Pérez-Valera, Fernando | Pérez-Valera, Juan Alberto
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente
Keywords: Upper Hauterivian | Nautiloidea | Systematics | Biostratigraphy | Palaeoenvironmental interpretation | Other invertebrates
Knowledge Area: Estratigrafía | Paleontología
Issue Date: 30-Sep-2021
Publisher: Elsevier
Citation: Cretaceous Research. 2022, 130: 105003. https://doi.org/10.1016/j.cretres.2021.105003
Abstract: The lower part of the Lower Cretaceous Bolos Sandstone Formation as exposed in the Barranco de la Muela section (Sierra de la Muela Range, southeastern Spain) yields two species of ornamented nautiloids, Cymatoceras neocomiense and Eucymatoceras plicatum. These have been collected together with other cephalopods (ammonoids, belemnites) and different invertebrates (corals, brachiopods, bivalves, gastropods, echinoids). This fossil assemblage includes numerous large macroconchs of the ammonite Pseudothurmannia mortilleti, here considered as a senior synonym of P. catulloi, index species of the homonymous subzone of the upper Hauterivian “Pseudothurmannia ohmi” Zone. On this basis, the here reported findings constitute the first biostratigraphically well-constrained records of C. neocomiense and E. plicatum, namely in the Pseudothurmannia catulloi Subzone. The presence of these two ornamented and relatively depressed nautiloids in fine sandstone levels interbedded with sandy marls of the Bolos Formation, together with the palaeoecological characteristics of the associated fauna suggest a nearshore to inner-middle shelf, shallow to moderately deep palaeoenvironment with mixed siliciclastic-carbonate sedimentation, and high to moderate energy.
Sponsor: CITEUC - Centro de Investigaç~ao da Terra e do Espaço da Universidade de Coimbra for the institutional support through the Research Project UID/Multi/00611/2020 of the FCT (Portugal), and the Research Project CGL2015-66604 of the Ministerio de Economía y Competitividad (Spain).
URI: http://hdl.handle.net/10045/119434
ISSN: 0195-6671 (Print) | 1095-998X (Online)
DOI: 10.1016/j.cretres.2021.105003
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2021 Elsevier Ltd.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.cretres.2021.105003
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