The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia
Here we describe the first fossil skull so far known for the turtle genus Chelus from the early Miocene (~ 16 m.y.), Castilletes Formation, Alta Guajira Peninsula, Cocinetas basin, Colombia. The skull is partially preserved, including most of the basicranium (pteygoid-bassioccipital bones) and the r...
- Autores:
- Tipo de recurso:
- Fecha de publicación:
- 2015
- Institución:
- Universidad del Rosario
- Repositorio:
- Repositorio EdocUR - U. Rosario
- Idioma:
- eng
- OAI Identifier:
- oai:repository.urosario.edu.co:10336/27067
- Palabra clave:
- Chelidae
Testudines
Colombia
South America
La Guajira
- Rights
- License
- Abierto (Texto Completo)
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88235006600ae9df4c2-0a18-4117-bf1d-4bf6fb9ef059-12020-08-19T14:40:54Z2020-08-19T14:40:54Z2015Here we describe the first fossil skull so far known for the turtle genus Chelus from the early Miocene (~ 16 m.y.), Castilletes Formation, Alta Guajira Peninsula, Cocinetas basin, Colombia. The skull is partially preserved, including most of the basicranium (pteygoid-bassioccipital bones) and the roof elements including the parietal, pterygoid and portions of the squamosal, supraoccipital and the most dorsal quadrate. The skull is preserved in three dimensions, without evidence of crushing, allowing the observation of the internal braincase morphology using microcomputer tomography. Comparisons with the skull of the only extant species for the genus Chelus fimbriata (Matamata turtle) allow us to conclude that for the last 16 million years the morphology of the skull for this genus has remained almost unvarying, with only a slightly higher compression of the most anterior braincase exhibited by the extant species. Due to its fragmentary condition, a more refined identification beyond the genus (Chelus sp.) is not possible; however, the overall skull design indicates that the fossil species could also have had the same ecological and dietary adaptations as its extant relative.application/pdfhttps://doi.org/10.26879/545ISSN: 1935-3952EISSN: 1094-8074https://repository.urosario.edu.co/handle/10336/27067engTexas A & M University32No. 3218Palaeontologia Electronica, Paleontologia ElectronicaVol. 18Palaeontologia Electronica, ISSN: 1935-3952; EISSN:1094-8074, Vol.18, No.32 (2015); pp. 18-32https://palaeo-electronica.org/content/2015/1245-chelus-fossil-skullOpenAbierto (Texto Completo)http://purl.org/coar/access_right/c_abf2Palaeontologia Electronica, Paleontologia Electronicainstname:Universidad del Rosarioreponame:Repositorio Institucional EdocURChelidaeTestudinesColombiaSouth AmericaLa GuajiraThe first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of ColombiaEl primer cráneo fósil de Chelus (Pleurodira: Chelidae; tortugas del género Matamata) del Mioceno temprano de ColombiaarticleArtículohttp://purl.org/coar/version/c_970fb48d4fbd8a85http://purl.org/coar/resource_type/c_6501Cadena, Edwin AlbertoJaramillo, Carlos AORIGINAL545.pdfapplication/pdf9903867https://repository.urosario.edu.co/bitstreams/b1ac5b49-c28a-4a2c-a04b-0626dded7825/download3bb542c82ce24a1eebf029f8ccedfee6MD51TEXT545.pdf.txt545.pdf.txtExtracted texttext/plain24925https://repository.urosario.edu.co/bitstreams/41e174fb-fe46-4b6c-8709-509aaee61dd2/downloadd1463413aece3294a3cebb8684cc1ce5MD52THUMBNAIL545.pdf.jpg545.pdf.jpgGenerated Thumbnailimage/jpeg4332https://repository.urosario.edu.co/bitstreams/04a0749e-5084-464d-ba3d-55750075be61/download6732090b7182b95880a2572575067321MD5310336/27067oai:repository.urosario.edu.co:10336/270672022-05-02 07:37:20.683269https://repository.urosario.edu.coRepositorio institucional EdocURedocur@urosario.edu.co |
dc.title.spa.fl_str_mv |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia |
dc.title.TranslatedTitle.spa.fl_str_mv |
El primer cráneo fósil de Chelus (Pleurodira: Chelidae; tortugas del género Matamata) del Mioceno temprano de Colombia |
title |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia |
spellingShingle |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia Chelidae Testudines Colombia South America La Guajira |
title_short |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia |
title_full |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia |
title_fullStr |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia |
title_full_unstemmed |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia |
title_sort |
The first fossil skull of Chelus (Pleurodira: Chelidae; Matamata genus turtles) from the early Miocene of Colombia |
dc.subject.keyword.spa.fl_str_mv |
Chelidae Testudines Colombia South America La Guajira |
topic |
Chelidae Testudines Colombia South America La Guajira |
description |
Here we describe the first fossil skull so far known for the turtle genus Chelus from the early Miocene (~ 16 m.y.), Castilletes Formation, Alta Guajira Peninsula, Cocinetas basin, Colombia. The skull is partially preserved, including most of the basicranium (pteygoid-bassioccipital bones) and the roof elements including the parietal, pterygoid and portions of the squamosal, supraoccipital and the most dorsal quadrate. The skull is preserved in three dimensions, without evidence of crushing, allowing the observation of the internal braincase morphology using microcomputer tomography. Comparisons with the skull of the only extant species for the genus Chelus fimbriata (Matamata turtle) allow us to conclude that for the last 16 million years the morphology of the skull for this genus has remained almost unvarying, with only a slightly higher compression of the most anterior braincase exhibited by the extant species. Due to its fragmentary condition, a more refined identification beyond the genus (Chelus sp.) is not possible; however, the overall skull design indicates that the fossil species could also have had the same ecological and dietary adaptations as its extant relative. |
publishDate |
2015 |
dc.date.created.spa.fl_str_mv |
2015 |
dc.date.accessioned.none.fl_str_mv |
2020-08-19T14:40:54Z |
dc.date.available.none.fl_str_mv |
2020-08-19T14:40:54Z |
dc.type.eng.fl_str_mv |
article |
dc.type.coarversion.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.spa.spa.fl_str_mv |
Artículo |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.26879/545 |
dc.identifier.issn.none.fl_str_mv |
ISSN: 1935-3952 EISSN: 1094-8074 |
dc.identifier.uri.none.fl_str_mv |
https://repository.urosario.edu.co/handle/10336/27067 |
url |
https://doi.org/10.26879/545 https://repository.urosario.edu.co/handle/10336/27067 |
identifier_str_mv |
ISSN: 1935-3952 EISSN: 1094-8074 |
dc.language.iso.spa.fl_str_mv |
eng |
language |
eng |
dc.relation.citationEndPage.none.fl_str_mv |
32 |
dc.relation.citationIssue.none.fl_str_mv |
No. 32 |
dc.relation.citationStartPage.none.fl_str_mv |
18 |
dc.relation.citationTitle.none.fl_str_mv |
Palaeontologia Electronica, Paleontologia Electronica |
dc.relation.citationVolume.none.fl_str_mv |
Vol. 18 |
dc.relation.ispartof.spa.fl_str_mv |
Palaeontologia Electronica, ISSN: 1935-3952; EISSN:1094-8074, Vol.18, No.32 (2015); pp. 18-32 |
dc.relation.uri.spa.fl_str_mv |
https://palaeo-electronica.org/content/2015/1245-chelus-fossil-skullOpen |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.acceso.spa.fl_str_mv |
Abierto (Texto Completo) |
rights_invalid_str_mv |
Abierto (Texto Completo) http://purl.org/coar/access_right/c_abf2 |
dc.format.mimetype.none.fl_str_mv |
application/pdf |
dc.publisher.spa.fl_str_mv |
Texas A & M University |
dc.source.spa.fl_str_mv |
Palaeontologia Electronica, Paleontologia Electronica |
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Universidad del Rosario |
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instname:Universidad del Rosario |
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reponame:Repositorio Institucional EdocUR |
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