First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)

Autores
Trivino, Laura Natalia; Albino, Adriana Maria; Dozo, Maria Teresa; Williams, Jorge Daniel
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this study, we describe a natural endocranial cast included in a partially preserved medium‐sized skull of the Upper Cretaceous South American snake Dinilysia patagonica. The endocast is composed of sedimentary filling of the cranial cavity in which the posterior brain, the vessels, the cranial nerves, and the inner ear surrounded by delicate semicircular canals, are represented. It is simple in form, with little differentiation between the three main areas (Forebrain, Midbrain, and Hindbrain), and without flexures. The nervous system is well preserved. The posterior brain surface is smooth, except for two small prominences that make up the cerebellum. A large inner ear is preserved on the right side; it consists of a voluminous central mass, the vestibule, which occupies most of the space defined by the three semicircular canals. In particular, the lateral semicircular canal is very close to the vestibule. This characteristic, in combination with the medium to large body size of Dinilysia, its large skull and dorsally exposed orbits, and vertebrae bearing a rather high neural spine on a depressed neural arch, suggests that this snake would have had a semifossorial lifestyle.
Fil: Trivino, Laura Natalia. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Herpetologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Albino, Adriana Maria. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dozo, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: Williams, Jorge Daniel. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Herpetologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Snakes
Cretaceous
Dinilysia Patagonica
Palaeoneurology
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/49740
Acceder
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network_name_str CONICET Digital (CONICET)
spelling First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)Trivino, Laura NataliaAlbino, Adriana MariaDozo, Maria TeresaWilliams, Jorge DanielSnakesCretaceousDinilysia PatagonicaPalaeoneurologyhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1In this study, we describe a natural endocranial cast included in a partially preserved medium‐sized skull of the Upper Cretaceous South American snake Dinilysia patagonica. The endocast is composed of sedimentary filling of the cranial cavity in which the posterior brain, the vessels, the cranial nerves, and the inner ear surrounded by delicate semicircular canals, are represented. It is simple in form, with little differentiation between the three main areas (Forebrain, Midbrain, and Hindbrain), and without flexures. The nervous system is well preserved. The posterior brain surface is smooth, except for two small prominences that make up the cerebellum. A large inner ear is preserved on the right side; it consists of a voluminous central mass, the vestibule, which occupies most of the space defined by the three semicircular canals. In particular, the lateral semicircular canal is very close to the vestibule. This characteristic, in combination with the medium to large body size of Dinilysia, its large skull and dorsally exposed orbits, and vertebrae bearing a rather high neural spine on a depressed neural arch, suggests that this snake would have had a semifossorial lifestyle.Fil: Trivino, Laura Natalia. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Herpetologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Albino, Adriana Maria. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Dozo, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; ArgentinaFil: Williams, Jorge Daniel. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Herpetologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaWiley-liss, Div John Wiley & Sons Inc2017-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/49740Trivino, Laura Natalia; Albino, Adriana Maria; Dozo, Maria Teresa; Williams, Jorge Daniel; First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina); Wiley-liss, Div John Wiley & Sons Inc; Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; 301; 1; 10-2017; 9-201932-8486CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1002/ar.23686info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/ar.23686info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:03:33Zoai:ri.conicet.gov.ar:11336/49740instacron: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:34982025-10-15 15:03:33.693CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
title First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
spellingShingle First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
Trivino, Laura Natalia
Snakes
Cretaceous
Dinilysia Patagonica
Palaeoneurology
title_short First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
title_full First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
title_fullStr First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
title_full_unstemmed First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
title_sort First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina)
dc.creator.none.fl_str_mv Trivino, Laura Natalia
Albino, Adriana Maria
Dozo, Maria Teresa
Williams, Jorge Daniel
author Trivino, Laura Natalia
author_facet Trivino, Laura Natalia
Albino, Adriana Maria
Dozo, Maria Teresa
Williams, Jorge Daniel
author_role author
author2 Albino, Adriana Maria
Dozo, Maria Teresa
Williams, Jorge Daniel
author2_role author
author
author
dc.subject.none.fl_str_mv Snakes
Cretaceous
Dinilysia Patagonica
Palaeoneurology
topic Snakes
Cretaceous
Dinilysia Patagonica
Palaeoneurology
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this study, we describe a natural endocranial cast included in a partially preserved medium‐sized skull of the Upper Cretaceous South American snake Dinilysia patagonica. The endocast is composed of sedimentary filling of the cranial cavity in which the posterior brain, the vessels, the cranial nerves, and the inner ear surrounded by delicate semicircular canals, are represented. It is simple in form, with little differentiation between the three main areas (Forebrain, Midbrain, and Hindbrain), and without flexures. The nervous system is well preserved. The posterior brain surface is smooth, except for two small prominences that make up the cerebellum. A large inner ear is preserved on the right side; it consists of a voluminous central mass, the vestibule, which occupies most of the space defined by the three semicircular canals. In particular, the lateral semicircular canal is very close to the vestibule. This characteristic, in combination with the medium to large body size of Dinilysia, its large skull and dorsally exposed orbits, and vertebrae bearing a rather high neural spine on a depressed neural arch, suggests that this snake would have had a semifossorial lifestyle.
Fil: Trivino, Laura Natalia. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Herpetologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Albino, Adriana Maria. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Departamento de Biología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dozo, Maria Teresa. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico. Instituto Patagónico de Geología y Paleontología; Argentina
Fil: Williams, Jorge Daniel. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Herpetologia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description In this study, we describe a natural endocranial cast included in a partially preserved medium‐sized skull of the Upper Cretaceous South American snake Dinilysia patagonica. The endocast is composed of sedimentary filling of the cranial cavity in which the posterior brain, the vessels, the cranial nerves, and the inner ear surrounded by delicate semicircular canals, are represented. It is simple in form, with little differentiation between the three main areas (Forebrain, Midbrain, and Hindbrain), and without flexures. The nervous system is well preserved. The posterior brain surface is smooth, except for two small prominences that make up the cerebellum. A large inner ear is preserved on the right side; it consists of a voluminous central mass, the vestibule, which occupies most of the space defined by the three semicircular canals. In particular, the lateral semicircular canal is very close to the vestibule. This characteristic, in combination with the medium to large body size of Dinilysia, its large skull and dorsally exposed orbits, and vertebrae bearing a rather high neural spine on a depressed neural arch, suggests that this snake would have had a semifossorial lifestyle.
publishDate 2017
dc.date.none.fl_str_mv 2017-10
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/11336/49740
Trivino, Laura Natalia; Albino, Adriana Maria; Dozo, Maria Teresa; Williams, Jorge Daniel; First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina); Wiley-liss, Div John Wiley & Sons Inc; Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; 301; 1; 10-2017; 9-20
1932-8486
CONICET Digital
CONICET
url http://hdl.handle.net/11336/49740
identifier_str_mv Trivino, Laura Natalia; Albino, Adriana Maria; Dozo, Maria Teresa; Williams, Jorge Daniel; First Natural Endocranial Cast of a Fossil Snake (Cretaceous of Patagonia, Argentina); Wiley-liss, Div John Wiley & Sons Inc; Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; 301; 1; 10-2017; 9-20
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/doi/10.1002/ar.23686
info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/abs/10.1002/ar.23686
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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 13.22299

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