Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain

A new approach, applying different statistical methods to the early Cambrian medusozoan site of Constantina (Seville, Spain), has allowed the establishment of new biometric parameters for the specimens, a more precise determination of the number of imprints—both subumbrellar and exumbrellar forms—an...

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Detalles Bibliográficos
Autores: Moclán, Abel, Velázquez Tello, Alejandro, Correa Cano, José Ángel, Mayoral Alfaro, Eduardo
Tipo de recurso: artículo
Fecha de publicación:2026
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:dnet:ariasmontano::95e3b2ba1479171f2b7b566c34e0a35c
Acceso en línea:https://hdl.handle.net/10272/28281
Access Level:acceso abierto
Palabra clave:Medusozoan
Spatial analysis
Taphonomic implications
Corduban
Early Cambrian
Spain
2416 Paleontología
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spelling Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, SpainMoclán, AbelVelázquez Tello, AlejandroCorrea Cano, José ÁngelMayoral Alfaro, EduardoMedusozoanSpatial analysisTaphonomic implicationsCordubanEarly CambrianSpain2416 PaleontologíaA new approach, applying different statistical methods to the early Cambrian medusozoan site of Constantina (Seville, Spain), has allowed the establishment of new biometric parameters for the specimens, a more precise determination of the number of imprints—both subumbrellar and exumbrellar forms—and the deduction of their main taphonomic characteristics. A total of 275 specimens have been identified, with exumbrellar forms (morphotype B) being the most frequent (92%) and having the smallest average length (24.91 cm), while subumbrellar forms (morphotype A) are larger on average (38.29 cm). This new registry represents a record three times greater than previously considered, with the sample characterised by specimens with an average length of 25.93 cm. The analysis of the length/width ratio shows a very strong and statistically significant correlation, implying isometric growth of the medusozoans, consistent with their adult stage. Most specimens exhibit a clear NW-SE orientation, which is parallel to the dominant direction of the palaeocurrents, suggesting that they were reoriented as they were pushed toward the coast before deposition. Additionally, most fossils are clustered in two distinct areas of the surface with very high density, indicating the presence of a common accumulation agent for the entire assemblage. Finally, the analysis of the expanded spatial window through spatial modelling has led to the identification of up to 16 additional specimens that had not been confirmed or were of uncertain identification.Elsevier20262026-01-0120262026-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10272/28281reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dnet:ariasmontano::95e3b2ba1479171f2b7b566c34e0a35c2026-06-02T14:58:11Z
dc.title.none.fl_str_mv Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
title Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
spellingShingle Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
Moclán, Abel
Medusozoan
Spatial analysis
Taphonomic implications
Corduban
Early Cambrian
Spain
2416 Paleontología
title_short Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
title_full Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
title_fullStr Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
title_full_unstemmed Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
title_sort Unveiling Medusozoan Fossil patterns: A statistical and spatial study of the lower Cambrian Site in Constantina, Spain
dc.creator.none.fl_str_mv Moclán, Abel
Velázquez Tello, Alejandro
Correa Cano, José Ángel
Mayoral Alfaro, Eduardo
author Moclán, Abel
author_facet Moclán, Abel
Velázquez Tello, Alejandro
Correa Cano, José Ángel
Mayoral Alfaro, Eduardo
author_role author
author2 Velázquez Tello, Alejandro
Correa Cano, José Ángel
Mayoral Alfaro, Eduardo
author2_role author
author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Medusozoan
Spatial analysis
Taphonomic implications
Corduban
Early Cambrian
Spain
2416 Paleontología
topic Medusozoan
Spatial analysis
Taphonomic implications
Corduban
Early Cambrian
Spain
2416 Paleontología
description A new approach, applying different statistical methods to the early Cambrian medusozoan site of Constantina (Seville, Spain), has allowed the establishment of new biometric parameters for the specimens, a more precise determination of the number of imprints—both subumbrellar and exumbrellar forms—and the deduction of their main taphonomic characteristics. A total of 275 specimens have been identified, with exumbrellar forms (morphotype B) being the most frequent (92%) and having the smallest average length (24.91 cm), while subumbrellar forms (morphotype A) are larger on average (38.29 cm). This new registry represents a record three times greater than previously considered, with the sample characterised by specimens with an average length of 25.93 cm. The analysis of the length/width ratio shows a very strong and statistically significant correlation, implying isometric growth of the medusozoans, consistent with their adult stage. Most specimens exhibit a clear NW-SE orientation, which is parallel to the dominant direction of the palaeocurrents, suggesting that they were reoriented as they were pushed toward the coast before deposition. Additionally, most fossils are clustered in two distinct areas of the surface with very high density, indicating the presence of a common accumulation agent for the entire assemblage. Finally, the analysis of the expanded spatial window through spatial modelling has led to the identification of up to 16 additional specimens that had not been confirmed or were of uncertain identification.
publishDate 2026
dc.date.none.fl_str_mv 2026
2026-01-01
2026
2026-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10272/28281
url https://hdl.handle.net/10272/28281
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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