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Identified in the Sierra Norte the Oldest Marine Fossils in Madrid and Are 460 Million Years Ago

Summary by 20minutos
A team of researchers from the Complutense University of Madrid and the Higher Council of Scientific Research (CSIC) have identified in the Sierra Norte marine fossils whose antiquity dates back to the Middle Ordovicic, approximately 460 million years ago, the oldest known to date in the Community of Madrid. Specifically, the remains were found in outcrops of paleozoic slates located in the surroundings of Patones and El Atazar and belong to dif…

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A team of researchers from the Complutense University of Madrid and the Higher Council of Scientific Research (CSIC) have identified in the Sierra Norte marine fossils whose antiquity dates back to the Middle Ordovicic, approximately 460 million years ago, the oldest known to date in the Community of Madrid. Specifically, the remains were found in outcrops of paleozoic slates located in the surroundings of Patones and El Atazar and belong to dif…

·Madrid, Spain
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This article was originally published in Noticias para Municipios. A team of researchers from the Universidad Complutense de Madrid and the Consejo Superior de Investigaciones Científicas (CSIC) has identified in the Sierra Norte marine fossils whose antiquity dates back to the Ordovicico Medio, approximately 460 million years ago, the oldest known to date in the Community of Madrid. The researchers located the remains in outcrops of paleozoic s…

A team of researchers from the Complutense University of Madrid and the Higher Council of Scientific Research (CSIC) has identified in the Sierra Norte marine fossils whose antiquity dates back to the Middle Ordovicic, approximately 460 million years ago, the oldest known to date in the Community of Madrid. Specifically, the remains were found in outcrops of paleozoic slates located in the surroundings of Patones and El Atazar and belong to diff…

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A team of researchers from the Universidad Complutense de Madrid (UCM) and the Consejo Superior de Investigaciones Científicas (CSIC) have identified in the Sierra Norte de la Comunidad de Madrid the remains of the oldest marine invertebrates known to date in this region. The specimens, recovered in outcrops of paleozoic slates located in [...]

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20minutos broke the news in Madrid, Spain on Wednesday, May 27, 2026.
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