Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues i...

Autores
Bronzati, Mario; Langer, Max C.; Ezcurra, Martin Daniel; Stocker, Michelle R.; Nesbitt, Sterling J.
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The anatomy of the braincase and associated soft tissues of the lagerpetidDromomeron gregorii (Archosauria: Avemetatarsalia) from the Late Triassic ofthe United States is here described. This corresponds to the first detaileddescription of cranial materials of Lagerpetidae, an enigmatic group of LateTriassic (c. 236–200 Million years ago) animals that are the closest known relativesof pterosaurs, the flying reptiles. The braincase of D. gregorii is characterizedby the presence of an anteriorly elongated laterosphenoid and apostparietal, features observed in stem-archosaurs but that were still unknownin early members of the avian lineage of archosaurs. Using micro-computedtomography (CT-scan data), we present digital reconstructions of the brain andendosseous labyrinth of D. gregorii. The brain of D. gregorii exhibits a floccularlobe of the cerebellum that projects within the space of the semicircular canals.The semicircular canals are relatively large when compared to other archosauromorphs,with the anterior canal exhibiting a circular shape. These features ofthe sensory structures of D. gregorii are more similar to those of pterosaursthan to those of other early avemetatarsalians. In sum, the braincase anatomyof D. gregorii shows a combination of plesiomorphic and apomorphic featuresin the phylogenetic context of Archosauria and suggests that the still poorly understood early evolution of the braincase in avemetatarsalians is complex,with a scenario of independent acquisitions and losses of character states.
Fil: Bronzati, Mario. Eberhard Karls Universität Tübingen; Alemania
Fil: Langer, Max C.. Universidade de Sao Paulo; Brasil
Fil: Ezcurra, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Stocker, Michelle R.. University of Texas at Austin; Estados Unidos
Fil: Nesbitt, Sterling J.. University of Texas at Austin; Estados Unidos
Materia
Braincase
Dromomeron
Lagerpetidae
Pterosauromorpha
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/265037
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/265037
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in AvemetatarsaliaBronzati, MarioLanger, Max C.Ezcurra, Martin DanielStocker, Michelle R.Nesbitt, Sterling J.BraincaseDromomeronLagerpetidaePterosauromorphahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The anatomy of the braincase and associated soft tissues of the lagerpetidDromomeron gregorii (Archosauria: Avemetatarsalia) from the Late Triassic ofthe United States is here described. This corresponds to the first detaileddescription of cranial materials of Lagerpetidae, an enigmatic group of LateTriassic (c. 236–200 Million years ago) animals that are the closest known relativesof pterosaurs, the flying reptiles. The braincase of D. gregorii is characterizedby the presence of an anteriorly elongated laterosphenoid and apostparietal, features observed in stem-archosaurs but that were still unknownin early members of the avian lineage of archosaurs. Using micro-computedtomography (CT-scan data), we present digital reconstructions of the brain andendosseous labyrinth of D. gregorii. The brain of D. gregorii exhibits a floccularlobe of the cerebellum that projects within the space of the semicircular canals.The semicircular canals are relatively large when compared to other archosauromorphs,with the anterior canal exhibiting a circular shape. These features ofthe sensory structures of D. gregorii are more similar to those of pterosaursthan to those of other early avemetatarsalians. In sum, the braincase anatomyof D. gregorii shows a combination of plesiomorphic and apomorphic featuresin the phylogenetic context of Archosauria and suggests that the still poorly understood early evolution of the braincase in avemetatarsalians is complex,with a scenario of independent acquisitions and losses of character states.Fil: Bronzati, Mario. Eberhard Karls Universität Tübingen; AlemaniaFil: Langer, Max C.. Universidade de Sao Paulo; BrasilFil: Ezcurra, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Stocker, Michelle R.. University of Texas at Austin; Estados UnidosFil: Nesbitt, Sterling J.. University of Texas at Austin; Estados UnidosWiley-liss, div John Wiley & Sons Inc.2023-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/265037Bronzati, Mario; Langer, Max C.; Ezcurra, Martin Daniel; Stocker, Michelle R.; Nesbitt, Sterling J.; Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia; Wiley-liss, div John Wiley & Sons Inc.; Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; 307; 4; 10-2023; 1147-11741932-8486CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.25334info:eu-repo/semantics/altIdentifier/doi/10.1002/ar.25334info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:24:59Zoai:ri.conicet.gov.ar:11336/265037instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:24:59.85CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
title Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
spellingShingle Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
Bronzati, Mario
Braincase
Dromomeron
Lagerpetidae
Pterosauromorpha
title_short Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
title_full Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
title_fullStr Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
title_full_unstemmed Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
title_sort Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia
dc.creator.none.fl_str_mv Bronzati, Mario
Langer, Max C.
Ezcurra, Martin Daniel
Stocker, Michelle R.
Nesbitt, Sterling J.
author Bronzati, Mario
author_facet Bronzati, Mario
Langer, Max C.
Ezcurra, Martin Daniel
Stocker, Michelle R.
Nesbitt, Sterling J.
author_role author
author2 Langer, Max C.
Ezcurra, Martin Daniel
Stocker, Michelle R.
Nesbitt, Sterling J.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Braincase
Dromomeron
Lagerpetidae
Pterosauromorpha
topic Braincase
Dromomeron
Lagerpetidae
Pterosauromorpha
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The anatomy of the braincase and associated soft tissues of the lagerpetidDromomeron gregorii (Archosauria: Avemetatarsalia) from the Late Triassic ofthe United States is here described. This corresponds to the first detaileddescription of cranial materials of Lagerpetidae, an enigmatic group of LateTriassic (c. 236–200 Million years ago) animals that are the closest known relativesof pterosaurs, the flying reptiles. The braincase of D. gregorii is characterizedby the presence of an anteriorly elongated laterosphenoid and apostparietal, features observed in stem-archosaurs but that were still unknownin early members of the avian lineage of archosaurs. Using micro-computedtomography (CT-scan data), we present digital reconstructions of the brain andendosseous labyrinth of D. gregorii. The brain of D. gregorii exhibits a floccularlobe of the cerebellum that projects within the space of the semicircular canals.The semicircular canals are relatively large when compared to other archosauromorphs,with the anterior canal exhibiting a circular shape. These features ofthe sensory structures of D. gregorii are more similar to those of pterosaursthan to those of other early avemetatarsalians. In sum, the braincase anatomyof D. gregorii shows a combination of plesiomorphic and apomorphic featuresin the phylogenetic context of Archosauria and suggests that the still poorly understood early evolution of the braincase in avemetatarsalians is complex,with a scenario of independent acquisitions and losses of character states.
Fil: Bronzati, Mario. Eberhard Karls Universität Tübingen; Alemania
Fil: Langer, Max C.. Universidade de Sao Paulo; Brasil
Fil: Ezcurra, Martin Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Stocker, Michelle R.. University of Texas at Austin; Estados Unidos
Fil: Nesbitt, Sterling J.. University of Texas at Austin; Estados Unidos
description The anatomy of the braincase and associated soft tissues of the lagerpetidDromomeron gregorii (Archosauria: Avemetatarsalia) from the Late Triassic ofthe United States is here described. This corresponds to the first detaileddescription of cranial materials of Lagerpetidae, an enigmatic group of LateTriassic (c. 236–200 Million years ago) animals that are the closest known relativesof pterosaurs, the flying reptiles. The braincase of D. gregorii is characterizedby the presence of an anteriorly elongated laterosphenoid and apostparietal, features observed in stem-archosaurs but that were still unknownin early members of the avian lineage of archosaurs. Using micro-computedtomography (CT-scan data), we present digital reconstructions of the brain andendosseous labyrinth of D. gregorii. The brain of D. gregorii exhibits a floccularlobe of the cerebellum that projects within the space of the semicircular canals.The semicircular canals are relatively large when compared to other archosauromorphs,with the anterior canal exhibiting a circular shape. These features ofthe sensory structures of D. gregorii are more similar to those of pterosaursthan to those of other early avemetatarsalians. In sum, the braincase anatomyof D. gregorii shows a combination of plesiomorphic and apomorphic featuresin the phylogenetic context of Archosauria and suggests that the still poorly understood early evolution of the braincase in avemetatarsalians is complex,with a scenario of independent acquisitions and losses of character states.
publishDate 2023
dc.date.none.fl_str_mv 2023-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/265037
Bronzati, Mario; Langer, Max C.; Ezcurra, Martin Daniel; Stocker, Michelle R.; Nesbitt, Sterling J.; Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia; Wiley-liss, div John Wiley & Sons Inc.; Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; 307; 4; 10-2023; 1147-1174
1932-8486
CONICET Digital
CONICET
url http://hdl.handle.net/11336/265037
identifier_str_mv Bronzati, Mario; Langer, Max C.; Ezcurra, Martin Daniel; Stocker, Michelle R.; Nesbitt, Sterling J.; Braincase and neuroanatomy of the lagerpetid Dromomeron gregorii (Archosauria, Pterosauromorpha) with comments on the early evolution of the braincase and associated soft tissues in Avemetatarsalia; Wiley-liss, div John Wiley & Sons Inc.; Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; 307; 4; 10-2023; 1147-1174
1932-8486
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://anatomypubs.onlinelibrary.wiley.com/doi/10.1002/ar.25334
info:eu-repo/semantics/altIdentifier/doi/10.1002/ar.25334
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley-liss, div John Wiley & Sons Inc.
publisher.none.fl_str_mv Wiley-liss, div John Wiley & Sons Inc.
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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