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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/265037
Ver los metadatos del registro completo
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CONICET Digital (CONICET) |
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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 Técnicas2025-09-29T09:55:50Zoai: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:34982025-09-29 09:55:50.746CONICET 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 |
_version_ |
1844613681141252096 |
score |
13.070432 |