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Miragaia longicollum MG 4863: New fossil and historical evidence from the most complete stegosaur from Europe

2025-10Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências da Terra e do Ambiente
datacite.subject.sdg15:Proteger a Vida Terrestre
dc.contributor.authorCosta Pinto, Francisco
dc.contributor.authorMaidment, Susannah
dc.contributor.authorSequero, Cristina
dc.contributor.authorCrespo, Vicente D.
dc.date.accessioned2025-11-05T14:42:31Z
dc.date.available2025-11-05T14:42:31Z
dc.date.issued2025-10
dc.description.abstractABSTRACT: Additional historical data regarding the original finding and excavation (circa 1958-1959) of the Miragaia longicollum stegosaur MG 4863 has been identified (including field notes and the complete field map), allowing a better understanding of its stratigraphic context. Additionally, osteological material that was previously partially encased in matrix was fully prepared and restored, including anterior and posterior caudal vertebrae, metacarpals, and five semi-complete dorsal vertebrae (the latter being the most significant addition, as these are the only skeletal elements shared by all type specimens of dacentrurine taxa). New anatomical information from these additional elements provides further evidence that M. longicollum is distinct from the closely related Late Jurassic stegosaur Dacentrurus armatus from England (demonstrated mainly by various caudal differences). The newly prepared material further completes what was already the best reference specimen among the Dacentrurinae clade, as well as Stegosauria in Europe during the Late Jurassic, increasing its value to better understand these contexts in future studies.por
dc.description.abstractRESUMO: Informação histórica adicional da recolha do espécime MG 4863 de Miragaia longicollum foi localizada (incluindo notas de campo e o mapa de campo completo), permitindo uma melhor compreensão do seu contexto estratigráfico. Além disso, material osteológico que anteriormente estava parcialmente encapsulado em matriz foi preparado e restaurado, incluindo vértebras caudais anteriores e posteriores, metacarpos, e cinco vértebras dorsais semi-completas (sendo estas últimas a adição mais significativa, dado serem os únicos elementos esqueléticos partilhados por todos os espécimes-tipo de estegossauros Dacentrurinos). Novas informações anatómicas destes elementos adicionais fornecem evidências adicionais que M. longicollum é distinto do estegossauro aparentado Dacentrurus armatus do Jurássico Superior de Inglaterra (demonstrado principalmente por várias diferenças caudais). O material recentemente preparado completa ainda mais aquele que já era o melhor espécime de referência no clado Dacentrurinae, bem como Stegosauria na Europa durante o Jurássico Superior, aumentando o seu valor para melhor compreender estes contextos em estudos futuros.por
dc.identifier.citationCosta, F., Maidment, S., Sequero, C. & Crespo, V. D. (2025). Miragaia longicollum MG 4863: New fossil and historical evidence from the most complete stegosaur from Europe. In: Comunicações Geológicas, 2025, vol. 112, Fascículo I, pp. 35-58. https://doi.org/10.34637/xs1n-3d27
dc.identifier.doi10.34637/xs1n-3d27
dc.identifier.eissn1647-581X
dc.identifier.issn0873-948X
dc.identifier.urihttp://hdl.handle.net/10400.9/6130
dc.language.isoeng
dc.peerreviewedyes
dc.publisherLNEG - Laboratório Nacional de Energia e Geologia
dc.relationGeoBioSciences GeoTechnologies and GeoEngineering
dc.relation2021.03080.CEECIND/CP1657/CT0007
dc.relation.hasversionhttps://www.lneg.pt/wp-content/uploads/2025/08/Volume_112_Fasciculo_1.pdf
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDacentrurinae
dc.subjectStratigraphy
dc.subjectUpper Jurassic
dc.subjectTaxonomy
dc.subjectHistorical record
dc.subjectEstratigrafia
dc.subjectJurássico Superior
dc.subjectTaxonomia
dc.subjectRegisto histórico
dc.titleMiragaia longicollum MG 4863: New fossil and historical evidence from the most complete stegosaur from Europeeng
dc.title.alternativeMiragaia longicollum MG 4863: Expandindo o conhecimento do Estegossauro mais completo da Europapor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleGeoBioSciences GeoTechnologies and GeoEngineering
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04035%2F2020/PT
oaire.citation.endPage58
oaire.citation.issue1
oaire.citation.startPage35
oaire.citation.titleComunicações Geológicas
oaire.citation.volume112
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCosta Pinto
person.familyNameMaidment
person.familyNameSequero
person.familyNameCrespo
person.givenNameFrancisco
person.givenNameSusannah
person.givenNameCristina
person.givenNameVicente D.
person.identifier.orcid0000-0002-8959-3708
person.identifier.orcid0000-0002-7741-2500
person.identifier.orcid0000-0003-2449-5303
person.identifier.orcid0000-0002-6236-2723
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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relation.isAuthorOfPublication.latestForDiscovery5206de14-be8c-4980-8c00-4e39bacf32f1
relation.isProjectOfPublication56330161-8ae0-4805-8bcc-0f102c8fc4e9
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Volume 112 (2025) Fascículo I