- The new species discovered has been named Chelediscus garzoni.
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| They find in Cumbres de San Bartolomé a new species of trilobite fossil |
They discover a new species of trilobite fossil in the Sierra de Huelva
A new species of trilobite fossil has been described for science in the municipality of Cumbres de San Bartolomé, in the Sierra de Huelva, in the midst of an investigation by an international team led by paleontologist Luis Collantes, from the Geosciences research group Applied from the University of Huelva.
This group is made up of Eduardo Mayoral, Professor of Paleontology at the Department of Earth Sciences and Technological Scientific Research Center at the University of Huelva; Sofia Pereira, from the Center for Geosciences at the University of Coimbra and Rodolfo Gózalo, professor at the Department of Botany and Geology at the University of Valencia.
The new species has been named 'Chelediscus garzoni' and the work has been published a few days ago in the prestigious Historical Biology An International Journal of Paleobiology.
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As indicated by the group that has carried out this research, the discovery of this species also represents the first record of the genus Chelediscus in southern Europe, in what was the western part of the Gondwana continent, in the Lower Cambrian (Marianian), between about 509 and about 514 million years ago.
Details about the new species
Chelediscus is an eodiscidian trilobite of the family Calodiscidae, already known in England, Newfoundland, New York, Sweden, and Russia. The researchers have highlighted that its discovery in Spain "supposes a strengthening of the faunal links with Avalonia, Baltica, Siberia and Laurentia, fragments separated in their day from the continent of Gondwana".
Collantes explained that "it is a new species within the genus" since "the morphological characters it presents do not coincide with any of the species described to date", so "it is an advance in terms of knowledge of the evolutionary lineage of this group of trilobites".
The new species discovered bears the name of Ignacio Garzón González, a mountain cultural manager and scholar of paleontology, who has contributed for years to the study, conservation, and dissemination of the geological and paleontological heritage of the Sierra de Aracena and Picos de Aroche, to whom the research team wanted to thank this task.
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For their part, trilobites were arthropods that inhabited the Earth's seas during the Paleozoic, and, specifically, they were the dominant benthic forms in the coastal marine ecosystems of that era.
These animals presented the body divided into three longitudinal lobes, in turn, divided into three transverse regions: the cephalon or head, the thorax, and the pygidium.
As for the Cambrian, this is the first period of the Paleozoic era, covering the interval of Earth's history from 541 million years ago to 485 million years ago.
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