New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia

The non-marine deposits of the Campanian–early Maastrichtian Cabullona Group (north-eastern Sonora, north-western Mexico) have yielded abundant fossils of continental vertebrates, including dinosaurs. However, this dinosaur fauna has yet to be studied in detail. We describe three partial hadrosaurid...

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Autores: Duarte-Bigurra, Ruben|||0000-0002-1510-7084, Vicente, Alba|||0000-0002-0313-7104, Gutiérrez-Blando, Cirene|||0000-0002-1377-0579, Serrano-Brañas, Claudia Inés|||0000-0002-3607-2642, Wagner, Jonathan R.|||0009-0003-4907-190X, Prieto-Márquez, Albert|||0000-0002-4836-4052
Tipo de recurso: artículo
Fecha de publicación:2026
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:dnet:uabarcelona_::c6647918b2a3c8275c15d633dbfe879f
Acceso en línea:https://ddd.uab.cat/record/328669
https://dx.doi.org/urn:doi:10.1080/14772019.2026.2656218
Access Level:acceso embargado
Palabra clave:Cretaceous
Dinosauria
Hadrosauridae
Laramidia
Mexico
evolution
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spelling New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern LaramidiaDuarte-Bigurra, Ruben|||0000-0002-1510-7084Vicente, Alba|||0000-0002-0313-7104Gutiérrez-Blando, Cirene|||0000-0002-1377-0579Serrano-Brañas, Claudia Inés|||0000-0002-3607-2642Wagner, Jonathan R.|||0009-0003-4907-190XPrieto-Márquez, Albert|||0000-0002-4836-4052CretaceousDinosauriaHadrosauridaeLaramidiaMexicoevolutionThe non-marine deposits of the Campanian–early Maastrichtian Cabullona Group (north-eastern Sonora, north-western Mexico) have yielded abundant fossils of continental vertebrates, including dinosaurs. However, this dinosaur fauna has yet to be studied in detail. We describe three partial hadrosaurid specimens from two localities (Arroyo del Alamito and Puerto Viejo) in the Fronteras Municipality of Sonora. All three localities correspond to the middle Campanian strata of the lower part of the Fronteras section of the Cabullona Group. The specimens are represented by partial axial and appendicular elements. The most complete individual (2997 PM 1) was collected at Puerto Viejo and consists of several axial elements, a partially complete pelvic girdle and hindlimb fragments. The parsimony phylogenetic analysis positioned the three Fronteras specimens deeply nested within the speciose saurolophine tribe Kritosaurini, as members of a subclade so far restricted to Patagonia, Argentina (here informally referred to as ‘secernosaurs’). Thus, the Fronteras hadrosaurids represent the first record of secernosaurs outside South America, greatly extending their biogeographical distribution to Late Cretaceous southern Laramidia. Inference of ancestral areas for the clades recovered in the phylogeny supports the hypothesis that hadrosauroids dispersed to South America via Southern Laramidia. 220262026-01-0120262026-12-30Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleimage/vnd.microsoft.iconhttps://ddd.uab.cat/record/328669https://dx.doi.org/urn:doi:10.1080/14772019.2026.2656218reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2024-161658NB-I00Generalitat de Catalunya https://doi.org/10.13039/501100002809 2022/BP-00179Generalitat de Catalunya https://doi.org/10.13039/501100002809 2021/SGR-00620Generalitat de Catalunya https://doi.org/10.13039/501100002809 2021/SGR-0119embargoed accesshttp://purl.org/coar/access_right/c_f1cfAquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/embargoedAccessoai:dnet:uabarcelona_::c6647918b2a3c8275c15d633dbfe879f2026-06-06T12:50:31Z
dc.title.none.fl_str_mv New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
title New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
spellingShingle New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
Duarte-Bigurra, Ruben|||0000-0002-1510-7084
Cretaceous
Dinosauria
Hadrosauridae
Laramidia
Mexico
evolution
title_short New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
title_full New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
title_fullStr New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
title_full_unstemmed New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
title_sort New hadrosaurid dinosaurs from the middle Campanian (Upper Cretaceous) of Sonora (Mexico) extend the South American kritosaurin lineage to southern Laramidia
dc.creator.none.fl_str_mv Duarte-Bigurra, Ruben|||0000-0002-1510-7084
Vicente, Alba|||0000-0002-0313-7104
Gutiérrez-Blando, Cirene|||0000-0002-1377-0579
Serrano-Brañas, Claudia Inés|||0000-0002-3607-2642
Wagner, Jonathan R.|||0009-0003-4907-190X
Prieto-Márquez, Albert|||0000-0002-4836-4052
author Duarte-Bigurra, Ruben|||0000-0002-1510-7084
author_facet Duarte-Bigurra, Ruben|||0000-0002-1510-7084
Vicente, Alba|||0000-0002-0313-7104
Gutiérrez-Blando, Cirene|||0000-0002-1377-0579
Serrano-Brañas, Claudia Inés|||0000-0002-3607-2642
Wagner, Jonathan R.|||0009-0003-4907-190X
Prieto-Márquez, Albert|||0000-0002-4836-4052
author_role author
author2 Vicente, Alba|||0000-0002-0313-7104
Gutiérrez-Blando, Cirene|||0000-0002-1377-0579
Serrano-Brañas, Claudia Inés|||0000-0002-3607-2642
Wagner, Jonathan R.|||0009-0003-4907-190X
Prieto-Márquez, Albert|||0000-0002-4836-4052
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Cretaceous
Dinosauria
Hadrosauridae
Laramidia
Mexico
evolution
topic Cretaceous
Dinosauria
Hadrosauridae
Laramidia
Mexico
evolution
description The non-marine deposits of the Campanian–early Maastrichtian Cabullona Group (north-eastern Sonora, north-western Mexico) have yielded abundant fossils of continental vertebrates, including dinosaurs. However, this dinosaur fauna has yet to be studied in detail. We describe three partial hadrosaurid specimens from two localities (Arroyo del Alamito and Puerto Viejo) in the Fronteras Municipality of Sonora. All three localities correspond to the middle Campanian strata of the lower part of the Fronteras section of the Cabullona Group. The specimens are represented by partial axial and appendicular elements. The most complete individual (2997 PM 1) was collected at Puerto Viejo and consists of several axial elements, a partially complete pelvic girdle and hindlimb fragments. The parsimony phylogenetic analysis positioned the three Fronteras specimens deeply nested within the speciose saurolophine tribe Kritosaurini, as members of a subclade so far restricted to Patagonia, Argentina (here informally referred to as ‘secernosaurs’). Thus, the Fronteras hadrosaurids represent the first record of secernosaurs outside South America, greatly extending their biogeographical distribution to Late Cretaceous southern Laramidia. Inference of ancestral areas for the clades recovered in the phylogeny supports the hypothesis that hadrosauroids dispersed to South America via Southern Laramidia.
publishDate 2026
dc.date.none.fl_str_mv
2
2026
2026-01-01
2026
2026-12-30
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
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dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/328669
https://dx.doi.org/urn:doi:10.1080/14772019.2026.2656218
url https://ddd.uab.cat/record/328669
https://dx.doi.org/urn:doi:10.1080/14772019.2026.2656218
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2024-161658NB-I00
Generalitat de Catalunya https://doi.org/10.13039/501100002809 2022/BP-00179
Generalitat de Catalunya https://doi.org/10.13039/501100002809 2021/SGR-00620
Generalitat de Catalunya https://doi.org/10.13039/501100002809 2021/SGR-0119
dc.rights.none.fl_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
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