OnCallavia(Trilobita) from the Cambrian Series 2 of Iberia with systematic status of the genus
| العنوان: | OnCallavia(Trilobita) from the Cambrian Series 2 of Iberia with systematic status of the genus |
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| المؤلفون: | Luis Collantes, Eduardo Mayoral, Eladio Liñán, Rodolfo Gozalo, Sofia Pereira |
| المصدر: | Arias Montano. Repositorio Institucional de la Universidad de Huelva instname |
| بيانات النشر: | Cambridge University Press (CUP), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010506 paleontology, biology, Paleontology, Biozone, Cambrian Stage 4, 010502 geochemistry & geophysics, biology.organism_classification, 01 natural sciences, Cambrian Stage 3, Gondwana, Geography, Paradoxides, Cambrian Series 2, Callavia, 0105 earth and related environmental sciences, Olenelloidea |
| الوصف: | Olenellid trilobites from the lower Cambrian of the Iberian Peninsula are very scarce and poorly studied, making them difficult to compare with defined species and to include in biostratigraphic and paleobiogeographic analyses. Based on newly collected specimens, we revise the species ‘Callavia? lotzei’ Richter and Richter, 1941 from the ‘Cumbres beds’ of Cumbres de San Bartolomé and the ‘Herrerías shale’ of Cañaveral de León, Sierra del Bujo, and Hinojales (Huelva, Spain), and ‘Paradoxides choffati’ Delgado, 1904 from the Vila Boim Formation of Elvas (Portugal). The new material indicates that Callavia? lotzei is a junior synonym of ‘P. choffati.’ The Iberian species are here assigned to Callavia Matthew, 1897, for which morphological characters are reassessed, offering a valuable opportunity to discuss characters previously misinterpreted for this genus. Traditionally assigned to the Olenelloidea Walcott, 1890, Callavia lacks some of the diagnostic characters of this superfamily and is here assigned to Judomioidea Repina, 1979. A new diagnosis for this genus is provided, and Sdzuyomia Lieberman, 2001 is considered to represent a junior synonym of Callavia. The genus Callavia is distributed across the western margin of Gondwana, from the westernMediterranean region (Iberia and Morocco) throughout all the Avalonia sectors (UK, eastern Newfoundland, and Massachusetts). Its presence in Iberia supports the faunal links between the West Gondwana domain and Avalonia during Cambrian Series 2. The Iberian records of Callavia choffati are assigned to the middle part of the regionalMarianian Stage (uppermost Cambrian Stage 3 to the lowermost Cambrian Stage 4) and correlates with the Callavia Biozone of Avalonia (lower Branchian Series). We are grateful to M. Webster (Chicago), F.A. Sundberg (Arizona), and J.O.R. Ebbestad (Uppsala, Sweden) for their detailed reviews and constructive suggestions; and N.Hughes (California) for his efforts in editing the article. We thank the Council of Environment and Territorial Planning from the Junta de Andalucía and the Directorate of Sierra de Aracena y Picos de Aroche Natural Park for providing permission to work into the park; M. Gordo for her contribution with the facilities during the fieldwork campaigns in northern Huelva province; I. Garzón for his fieldwork assistance in Cañaveral de León; M. Ramalho (Museu Geológico de Lisboa), in loving memory, for granting access to fossil collections under his care; J. Colmenar (Centro de Geociências de Coimbra) and the remaining ‘Delgaditos Team’ for assisting in fieldwork in Vila Boim. The present work has been carried out with Junta de Andalucía to the RNM 276 Research Group and the Centro Científico-Tecnológico de Huelva to the Department of Applied Geosciences, together with the GIUV2017-395 research group of the University of Valencia. This study was supported by Portuguese funds by Fundação para a Ciência e a Tecnologia, I.P. (Portugal) in the frame of UID/Multi00073/2019, UIDB/00073/2020 and UIDP/00073/ 2020 projects of the I & D unit Geosciences Center (CGEO). This work is a contribution to the project IGCP 652. |
| تدمد: | 1937-2337 0022-3360 |
| DOI: | 10.1017/jpa.2021.46 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56fde901a8cb97f36cbf165fb1ed523b https://doi.org/10.1017/jpa.2021.46 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....56fde901a8cb97f36cbf165fb1ed523b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19372337 00223360 |
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| DOI: | 10.1017/jpa.2021.46 |