RT Journal Article
T1 Upper Marianian (Cambrian Series 2) trilobites from the Totanés–Noez area (Central Iberian Zone, Toledo province, Spain): systematics and intercontinental correlation
A1 Sepúlveda, Alexandre
A1 Chirivella Martorell, Juan Bautista
A1 Collantes Ruiz, Luis
A1 Mayoral Alfaro, Eduardo
A1 Liñán Guijarro, Eladio
A1 Gozalo Gutiérrez, R.
AB Marianian (Cambrian Series 2) trilobites from the area between Totanés and Noez (Central Iberian Zone) are described andtheir biostratigraphical significance is discussed. The trilobites come from eight localities and can be divided into two mainassemblages: the first is characterised by Serrodiscus bellimarginatus, Chelediscus cf. garzoni, Atops calanus, Pseudatopsreticulatus and indeterminate polymeroid trilobites. The second assemblage consists of Serrodiscus bellimarginatus, Triangulaspiscf. fusca, Andalusiana palaciosi n. sp., Termierella totanesensis n. sp. and Acanthomicmacca sp. Both fossilassociations indicate a late Marianian age in the regional stratigraphic scheme for the Cambrian of the Iberian Peninsula,as Serrodiscus, Chelediscus and Pseudatops have been recorded from the upper Marianian substage, while Triangulaspis,Andalusiana, Termierella and Acanthomicmacca are indicative of the middle to upper Marianian. The taxa considered herehave regional and intercontinental correlation potential. The presence of the globally distributed genus Serrodiscus allowscorrelation in the Cambrian Series 2. The first assemblage, composed of Serrodiscus, Chelediscus, Atops and Pseudatops,has been reported from the Ossa-Morena Zone, Avalonia, Laurentia, Baltica and Siberia, improving the correlation betweenthese regions. The second assemblage of Andalusiana, Termierella, Triangulaspis and Serrodiscus is comparable to otherassemblages from the Ossa-Morena Zone, the Iberian Chains and Morocco, with Triangulaspis also reported from Newfoundlandand Siberia. In addition, the proposal of the ISCS regarding the co-occurrence of Hebediscus, Calodiscus, Serrodiscusand Triangulaspis as a potential marker for the base of the Cambrian Stage 4 may imply that the upper Marianian of Iberiacould be approximately correlated with the base of this stage.
PB Springer
SN 1698-6180
SN 1886-7995 (electrónico)
YR 2024
FD 2024-03
LK https://hdl.handle.net/10272/23541
UL https://hdl.handle.net/10272/23541
LA eng
NO Sepúlveda, A., Chirivella Martorell, J. B., Collantes, L., Mayoral, E., Liñán, E., & Gozalo, R. (2024). Upper Marianian (Cambrian Series 2) trilobites from the Totanés–Noez area (Central Iberian Zone, Toledo province, Spain): systematics and intercontinental correlation. In Journal of Iberian Geology. Springer Science and Business Media LLC. https://doi.org/10.1007/s41513-024-00231-3
NO Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature.This is a contribution to the GIUV2017-395 Research Groupof the Universitat de València and to the project IGCPs 652 “Readinggeologic time in Palaeozoic sedimentary rocks” as well as the AndalusianGovernment to the Research Group RNM276 and by the CentroCientífico-Tecnológico de Huelva (CCTH). Thanks to Ms. IsabelPérez Urresti (technician of the University of Zaragoza) who assistedus with the photography. L.C. is supported by Portuguese funds byFundação para a Ciência e a Tecnologia (Portugal) in the frame of UI/DB/151298/2020 Project.
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026