Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Ar...

Autores
Porfiri, Juan D; Baiano, Mattia Antonio; Diniz Dos Santos, Domenica; Gianechini, Federico Abel; Pittman, Michael; Lamanna, Matthew C.
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
Here we describe Diuqin lechiguanae gen. et sp. nov., a new unenlagiine taxon from the Upper Cretaceous (Santonian) Bajo de la Carpa Formation of the Neuquén Basin of Neuquén Province in northern Patagonia, Argentina that fills a substantial stratigraphic gap in the fossil record of these theropods. Although known only from a very incomplete postcranial skeleton, the preserved bones of Diuqin differ from corresponding elements in other unenlagiines, justifying the erection of the new taxon. Moreover, in several morphological aspects, the humerus of Diuqin appears intermediate between those of geologically older unenlagiines from the Neuquén Basin (e.g., Unenlagia spp. from the Turonian–Coniacian Portezuelo Formation) and that of the stratigraphically younger, larger-bodied Austroraptor cabazai from the Campanian–Maastrichtian Allen Formation. Consequently, the morphology of the new taxon appears to indicate a transitional stage in unenlagiine evolution. Phylogenetic analysis recovers Diuqin as a paravian with multiple plausible systematic positions, but the strongest affinity is with Unenlagiinae. The humerus of the new form exhibits subcircular punctures near its distal end that are interpreted as feeding traces most likely left by a conical-toothed crocodyliform, mammal, or theropod, the latter potentially corresponding to a megaraptorid or another unenlagiine individual. Thus, in addition to filling important morphological and temporal gaps in unenlagiine evolutionary history, the new taxon also offers information relating to the paleoecology of these theropods.
Fil: Porfiri, Juan D. Universidad Nacional del Comahue. Centro Paleontologico Lago Barreales; Argentina.
Fil: Baiano, Mattia Antonio. Provincia del Neuquén. Municipalidad de Villa El Chocón. Museo Paleontológico "Ernesto Bachmann"; Argentina.
Fil: Baiano, Mattia Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Diniz Dos Santos, Domenica. Universidad Nacional del Comahue. Museo de Geología y Paleontología; Argentina.
Fil: Gianechini, Federico Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico. San Luis; Argentina.
Fil: Gianechini, Federico Abel. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales; Argentina.
Fil: Pittman, Michael. The Chinese University of Hong Kong; China.
Fil: Lamanna, Matthew C.. Carnegie Museum of Natural History; Estados Unidos.
Fuente
BMC Ecology and Evolution
Materia
Unenlagiinae
Dromaeosauridae
Cretaceous
Bajo de la Carpa Formation
Patagonia
South America
Biostratigraphy
Phylogeny
Paleoecology
Megaraptoridae
Ciencias de la Tierra y Medio Ambiente
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
Repositorio Digital Institucional (UNCo)
Institución
Universidad Nacional del Comahue
OAI Identificador
oai:rdi.uncoma.edu.ar:uncomaid/18958
Acceder
id RDIUNCO_f521494ffb2b772d082785a00bd69a21
oai_identifier_str oai:rdi.uncoma.edu.ar:uncomaid/18958
network_acronym_str RDIUNCO
repository_id_str 7108
network_name_str Repositorio Digital Institucional (UNCo)
spelling Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, ArgentinaPorfiri, Juan DBaiano, Mattia AntonioDiniz Dos Santos, DomenicaGianechini, Federico AbelPittman, MichaelLamanna, Matthew C.UnenlagiinaeDromaeosauridaeCretaceousBajo de la Carpa FormationPatagoniaSouth AmericaBiostratigraphyPhylogenyPaleoecologyMegaraptoridaeCiencias de la Tierra y Medio AmbienteHere we describe Diuqin lechiguanae gen. et sp. nov., a new unenlagiine taxon from the Upper Cretaceous (Santonian) Bajo de la Carpa Formation of the Neuquén Basin of Neuquén Province in northern Patagonia, Argentina that fills a substantial stratigraphic gap in the fossil record of these theropods. Although known only from a very incomplete postcranial skeleton, the preserved bones of Diuqin differ from corresponding elements in other unenlagiines, justifying the erection of the new taxon. Moreover, in several morphological aspects, the humerus of Diuqin appears intermediate between those of geologically older unenlagiines from the Neuquén Basin (e.g., Unenlagia spp. from the Turonian–Coniacian Portezuelo Formation) and that of the stratigraphically younger, larger-bodied Austroraptor cabazai from the Campanian–Maastrichtian Allen Formation. Consequently, the morphology of the new taxon appears to indicate a transitional stage in unenlagiine evolution. Phylogenetic analysis recovers Diuqin as a paravian with multiple plausible systematic positions, but the strongest affinity is with Unenlagiinae. The humerus of the new form exhibits subcircular punctures near its distal end that are interpreted as feeding traces most likely left by a conical-toothed crocodyliform, mammal, or theropod, the latter potentially corresponding to a megaraptorid or another unenlagiine individual. Thus, in addition to filling important morphological and temporal gaps in unenlagiine evolutionary history, the new taxon also offers information relating to the paleoecology of these theropods.Fil: Porfiri, Juan D. Universidad Nacional del Comahue. Centro Paleontologico Lago Barreales; Argentina.Fil: Baiano, Mattia Antonio. Provincia del Neuquén. Municipalidad de Villa El Chocón. Museo Paleontológico "Ernesto Bachmann"; Argentina.Fil: Baiano, Mattia Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.Fil: Diniz Dos Santos, Domenica. Universidad Nacional del Comahue. Museo de Geología y Paleontología; Argentina.Fil: Gianechini, Federico Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico. San Luis; Argentina.Fil: Gianechini, Federico Abel. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales; Argentina.Fil: Pittman, Michael. The Chinese University of Hong Kong; China.Fil: Lamanna, Matthew C.. Carnegie Museum of Natural History; Estados Unidos.Springer2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfpp. 2-22application/pdf2730-7182https://rdi.uncoma.edu.ar/handle/uncomaid/18958BMC Ecology and Evolutionreponame:Repositorio Digital Institucional (UNCo)instname:Universidad Nacional del Comahueenghttps://doi.org/10.1186/s12862-024-02247-winfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/2025-09-29T14:28:54Zoai:rdi.uncoma.edu.ar:uncomaid/18958instacron:UNCoInstitucionalhttp://rdi.uncoma.edu.ar/Universidad públicaNo correspondehttp://rdi.uncoma.edu.ar/oaimirtha.mateo@biblioteca.uncoma.edu.ar; adriana.acuna@biblioteca.uncoma.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:71082025-09-29 14:28:54.988Repositorio Digital Institucional (UNCo) - Universidad Nacional del Comahuefalse
dc.title.none.fl_str_mv Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
title Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
spellingShingle Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
Porfiri, Juan D
Unenlagiinae
Dromaeosauridae
Cretaceous
Bajo de la Carpa Formation
Patagonia
South America
Biostratigraphy
Phylogeny
Paleoecology
Megaraptoridae
Ciencias de la Tierra y Medio Ambiente
title_short Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
title_full Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
title_fullStr Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
title_full_unstemmed Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
title_sort Diuqin lechiguanae gen. et sp. nov., a new unenlagiine (Theropoda: Paraves) from the Bajo de la Carpa Formation (Neuquén Group, Upper Cretaceous) of Neuquén Province, Patagonia, Argentina
dc.creator.none.fl_str_mv Porfiri, Juan D
Baiano, Mattia Antonio
Diniz Dos Santos, Domenica
Gianechini, Federico Abel
Pittman, Michael
Lamanna, Matthew C.
author Porfiri, Juan D
author_facet Porfiri, Juan D
Baiano, Mattia Antonio
Diniz Dos Santos, Domenica
Gianechini, Federico Abel
Pittman, Michael
Lamanna, Matthew C.
author_role author
author2 Baiano, Mattia Antonio
Diniz Dos Santos, Domenica
Gianechini, Federico Abel
Pittman, Michael
Lamanna, Matthew C.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Unenlagiinae
Dromaeosauridae
Cretaceous
Bajo de la Carpa Formation
Patagonia
South America
Biostratigraphy
Phylogeny
Paleoecology
Megaraptoridae
Ciencias de la Tierra y Medio Ambiente
topic Unenlagiinae
Dromaeosauridae
Cretaceous
Bajo de la Carpa Formation
Patagonia
South America
Biostratigraphy
Phylogeny
Paleoecology
Megaraptoridae
Ciencias de la Tierra y Medio Ambiente
dc.description.none.fl_txt_mv Here we describe Diuqin lechiguanae gen. et sp. nov., a new unenlagiine taxon from the Upper Cretaceous (Santonian) Bajo de la Carpa Formation of the Neuquén Basin of Neuquén Province in northern Patagonia, Argentina that fills a substantial stratigraphic gap in the fossil record of these theropods. Although known only from a very incomplete postcranial skeleton, the preserved bones of Diuqin differ from corresponding elements in other unenlagiines, justifying the erection of the new taxon. Moreover, in several morphological aspects, the humerus of Diuqin appears intermediate between those of geologically older unenlagiines from the Neuquén Basin (e.g., Unenlagia spp. from the Turonian–Coniacian Portezuelo Formation) and that of the stratigraphically younger, larger-bodied Austroraptor cabazai from the Campanian–Maastrichtian Allen Formation. Consequently, the morphology of the new taxon appears to indicate a transitional stage in unenlagiine evolution. Phylogenetic analysis recovers Diuqin as a paravian with multiple plausible systematic positions, but the strongest affinity is with Unenlagiinae. The humerus of the new form exhibits subcircular punctures near its distal end that are interpreted as feeding traces most likely left by a conical-toothed crocodyliform, mammal, or theropod, the latter potentially corresponding to a megaraptorid or another unenlagiine individual. Thus, in addition to filling important morphological and temporal gaps in unenlagiine evolutionary history, the new taxon also offers information relating to the paleoecology of these theropods.
Fil: Porfiri, Juan D. Universidad Nacional del Comahue. Centro Paleontologico Lago Barreales; Argentina.
Fil: Baiano, Mattia Antonio. Provincia del Neuquén. Municipalidad de Villa El Chocón. Museo Paleontológico "Ernesto Bachmann"; Argentina.
Fil: Baiano, Mattia Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina.
Fil: Diniz Dos Santos, Domenica. Universidad Nacional del Comahue. Museo de Geología y Paleontología; Argentina.
Fil: Gianechini, Federico Abel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico. San Luis; Argentina.
Fil: Gianechini, Federico Abel. Universidad Nacional de San Luis. Facultad de Ciencias Físico Matemáticas y Naturales; Argentina.
Fil: Pittman, Michael. The Chinese University of Hong Kong; China.
Fil: Lamanna, Matthew C.. Carnegie Museum of Natural History; Estados Unidos.
description Here we describe Diuqin lechiguanae gen. et sp. nov., a new unenlagiine taxon from the Upper Cretaceous (Santonian) Bajo de la Carpa Formation of the Neuquén Basin of Neuquén Province in northern Patagonia, Argentina that fills a substantial stratigraphic gap in the fossil record of these theropods. Although known only from a very incomplete postcranial skeleton, the preserved bones of Diuqin differ from corresponding elements in other unenlagiines, justifying the erection of the new taxon. Moreover, in several morphological aspects, the humerus of Diuqin appears intermediate between those of geologically older unenlagiines from the Neuquén Basin (e.g., Unenlagia spp. from the Turonian–Coniacian Portezuelo Formation) and that of the stratigraphically younger, larger-bodied Austroraptor cabazai from the Campanian–Maastrichtian Allen Formation. Consequently, the morphology of the new taxon appears to indicate a transitional stage in unenlagiine evolution. Phylogenetic analysis recovers Diuqin as a paravian with multiple plausible systematic positions, but the strongest affinity is with Unenlagiinae. The humerus of the new form exhibits subcircular punctures near its distal end that are interpreted as feeding traces most likely left by a conical-toothed crocodyliform, mammal, or theropod, the latter potentially corresponding to a megaraptorid or another unenlagiine individual. Thus, in addition to filling important morphological and temporal gaps in unenlagiine evolutionary history, the new taxon also offers information relating to the paleoecology of these theropods.
publishDate 2024
dc.date.none.fl_str_mv 2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv 2730-7182
https://rdi.uncoma.edu.ar/handle/uncomaid/18958
identifier_str_mv 2730-7182
url https://rdi.uncoma.edu.ar/handle/uncomaid/18958
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://doi.org/10.1186/s12862-024-02247-w
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
pp. 2-22
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv BMC Ecology and Evolution
reponame:Repositorio Digital Institucional (UNCo)
instname:Universidad Nacional del Comahue
reponame_str Repositorio Digital Institucional (UNCo)
collection Repositorio Digital Institucional (UNCo)
instname_str Universidad Nacional del Comahue
repository.name.fl_str_mv Repositorio Digital Institucional (UNCo) - Universidad Nacional del Comahue
repository.mail.fl_str_mv mirtha.mateo@biblioteca.uncoma.edu.ar; adriana.acuna@biblioteca.uncoma.edu.ar
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score 12.559606

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