A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia
- Autores
- López Arbarello, Adriana; Sferco, Marta Emilia; Rauhut, Oliver Walter Mischa
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Jurassic freshwater fish faunas are still poorly known, with the only assemblage of that age known from southern South America being the Almada fauna of the Cañadón Calcáreo Formation (Oxfordian-Tithonian) of Chubut, Argentina. This fauna is composed mainly by abundant teleosts and a much rarer basal actinopterygian, originally described as Oligopleurus groeberi and currently usually placed in the genus Coccolepis. This taxon is here redescribed on the basis of the original specimens and more numerous and better preserved new material from several localities within the Cañadón Calcáreo Formation. The species shows several differences to other coccolepidid taxa, including the apomorphic presence of a sensory canal in the gular plate, and cannot be referred to a known genus. Thus, a new genus name, Condorlepis gen. nov., is proposed. The detailed anatomical description of Condorlepis gen. nov. groeberi provides further evidence for the chondrostean affinities of the Coccolepididae and their close relationships with the Acipenseriformes, since this species shows six characters that were hitherto considered to be autapomorphies of the latter clade. A comparison of the Almada fauna with other Gondwanan Jurassic freshwater fish faunas shows close similarities with the roughly contemporaneous fauna of Talbragar, Australia, which also includes an abundant basal teleost and coccolepidids. In contrast, there are marked differences with the faunas of the Early to Middle Jurassic Kota Formation of India, the Middle to Late Jurassic Stanleyville beds of the Democratic Republic of the Congo, and the probably Late Jurassic Tacuarembó Formation of Uruguay, in which basal, non-teleostean neopterygians and sarcopterygians are abundant.
Fil: López Arbarello, Adriana. Bayerische Staatssammlung Fur Palaontologie Und Geologie; Alemania
Fil: Sferco, Marta Emilia. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Geologia. Laboratorio de Paleontologia Evolutiva de Vertebrados; Argentina. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Fil: Rauhut, Oliver Walter Mischa. Bayerische Staatssammlung Fur Palaontologie Und Geologie; Alemania. Museo Paleontológico Egidio Feruglio; Argentina - Materia
-
NEW GENUS
CHONDROSTEI
COCCOLEPIDIDAE
PATAGONIA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/11344
Ver los metadatos del registro completo
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A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of PatagoniaLópez Arbarello, AdrianaSferco, Marta EmiliaRauhut, Oliver Walter MischaNEW GENUSCHONDROSTEICOCCOLEPIDIDAEPATAGONIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Jurassic freshwater fish faunas are still poorly known, with the only assemblage of that age known from southern South America being the Almada fauna of the Cañadón Calcáreo Formation (Oxfordian-Tithonian) of Chubut, Argentina. This fauna is composed mainly by abundant teleosts and a much rarer basal actinopterygian, originally described as Oligopleurus groeberi and currently usually placed in the genus Coccolepis. This taxon is here redescribed on the basis of the original specimens and more numerous and better preserved new material from several localities within the Cañadón Calcáreo Formation. The species shows several differences to other coccolepidid taxa, including the apomorphic presence of a sensory canal in the gular plate, and cannot be referred to a known genus. Thus, a new genus name, Condorlepis gen. nov., is proposed. The detailed anatomical description of Condorlepis gen. nov. groeberi provides further evidence for the chondrostean affinities of the Coccolepididae and their close relationships with the Acipenseriformes, since this species shows six characters that were hitherto considered to be autapomorphies of the latter clade. A comparison of the Almada fauna with other Gondwanan Jurassic freshwater fish faunas shows close similarities with the roughly contemporaneous fauna of Talbragar, Australia, which also includes an abundant basal teleost and coccolepidids. In contrast, there are marked differences with the faunas of the Early to Middle Jurassic Kota Formation of India, the Middle to Late Jurassic Stanleyville beds of the Democratic Republic of the Congo, and the probably Late Jurassic Tacuarembó Formation of Uruguay, in which basal, non-teleostean neopterygians and sarcopterygians are abundant.Fil: López Arbarello, Adriana. Bayerische Staatssammlung Fur Palaontologie Und Geologie; AlemaniaFil: Sferco, Marta Emilia. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Geologia. Laboratorio de Paleontologia Evolutiva de Vertebrados; Argentina. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaFil: Rauhut, Oliver Walter Mischa. Bayerische Staatssammlung Fur Palaontologie Und Geologie; Alemania. Museo Paleontológico Egidio Feruglio; ArgentinaCoquina Press2013-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/11344López Arbarello, Adriana; Sferco, Marta Emilia; Rauhut, Oliver Walter Mischa; A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia; Coquina Press; Palaeontologia Electronica; 16; 1; 2-2013; 1-231094-80741532-3056enginfo:eu-repo/semantics/altIdentifier/url/http://palaeo-electronica.org/content/2013/397-new-coccolepidid-from-patagoniainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:38:01Zoai:ri.conicet.gov.ar:11336/11344instacron: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 14:38:02.108CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia |
title |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia |
spellingShingle |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia López Arbarello, Adriana NEW GENUS CHONDROSTEI COCCOLEPIDIDAE PATAGONIA |
title_short |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia |
title_full |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia |
title_fullStr |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia |
title_full_unstemmed |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia |
title_sort |
A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia |
dc.creator.none.fl_str_mv |
López Arbarello, Adriana Sferco, Marta Emilia Rauhut, Oliver Walter Mischa |
author |
López Arbarello, Adriana |
author_facet |
López Arbarello, Adriana Sferco, Marta Emilia Rauhut, Oliver Walter Mischa |
author_role |
author |
author2 |
Sferco, Marta Emilia Rauhut, Oliver Walter Mischa |
author2_role |
author author |
dc.subject.none.fl_str_mv |
NEW GENUS CHONDROSTEI COCCOLEPIDIDAE PATAGONIA |
topic |
NEW GENUS CHONDROSTEI COCCOLEPIDIDAE PATAGONIA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Jurassic freshwater fish faunas are still poorly known, with the only assemblage of that age known from southern South America being the Almada fauna of the Cañadón Calcáreo Formation (Oxfordian-Tithonian) of Chubut, Argentina. This fauna is composed mainly by abundant teleosts and a much rarer basal actinopterygian, originally described as Oligopleurus groeberi and currently usually placed in the genus Coccolepis. This taxon is here redescribed on the basis of the original specimens and more numerous and better preserved new material from several localities within the Cañadón Calcáreo Formation. The species shows several differences to other coccolepidid taxa, including the apomorphic presence of a sensory canal in the gular plate, and cannot be referred to a known genus. Thus, a new genus name, Condorlepis gen. nov., is proposed. The detailed anatomical description of Condorlepis gen. nov. groeberi provides further evidence for the chondrostean affinities of the Coccolepididae and their close relationships with the Acipenseriformes, since this species shows six characters that were hitherto considered to be autapomorphies of the latter clade. A comparison of the Almada fauna with other Gondwanan Jurassic freshwater fish faunas shows close similarities with the roughly contemporaneous fauna of Talbragar, Australia, which also includes an abundant basal teleost and coccolepidids. In contrast, there are marked differences with the faunas of the Early to Middle Jurassic Kota Formation of India, the Middle to Late Jurassic Stanleyville beds of the Democratic Republic of the Congo, and the probably Late Jurassic Tacuarembó Formation of Uruguay, in which basal, non-teleostean neopterygians and sarcopterygians are abundant. Fil: López Arbarello, Adriana. Bayerische Staatssammlung Fur Palaontologie Und Geologie; Alemania Fil: Sferco, Marta Emilia. Universidad de Buenos Aires. Facultad de Cs.exactas y Naturales. Departamento de Geologia. Laboratorio de Paleontologia Evolutiva de Vertebrados; Argentina. Museo Paleontológico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Centro de Investigaciones en Ciencias de la Tierra; Argentina Fil: Rauhut, Oliver Walter Mischa. Bayerische Staatssammlung Fur Palaontologie Und Geologie; Alemania. Museo Paleontológico Egidio Feruglio; Argentina |
description |
Jurassic freshwater fish faunas are still poorly known, with the only assemblage of that age known from southern South America being the Almada fauna of the Cañadón Calcáreo Formation (Oxfordian-Tithonian) of Chubut, Argentina. This fauna is composed mainly by abundant teleosts and a much rarer basal actinopterygian, originally described as Oligopleurus groeberi and currently usually placed in the genus Coccolepis. This taxon is here redescribed on the basis of the original specimens and more numerous and better preserved new material from several localities within the Cañadón Calcáreo Formation. The species shows several differences to other coccolepidid taxa, including the apomorphic presence of a sensory canal in the gular plate, and cannot be referred to a known genus. Thus, a new genus name, Condorlepis gen. nov., is proposed. The detailed anatomical description of Condorlepis gen. nov. groeberi provides further evidence for the chondrostean affinities of the Coccolepididae and their close relationships with the Acipenseriformes, since this species shows six characters that were hitherto considered to be autapomorphies of the latter clade. A comparison of the Almada fauna with other Gondwanan Jurassic freshwater fish faunas shows close similarities with the roughly contemporaneous fauna of Talbragar, Australia, which also includes an abundant basal teleost and coccolepidids. In contrast, there are marked differences with the faunas of the Early to Middle Jurassic Kota Formation of India, the Middle to Late Jurassic Stanleyville beds of the Democratic Republic of the Congo, and the probably Late Jurassic Tacuarembó Formation of Uruguay, in which basal, non-teleostean neopterygians and sarcopterygians are abundant. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-02 |
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/11336/11344 López Arbarello, Adriana; Sferco, Marta Emilia; Rauhut, Oliver Walter Mischa; A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia; Coquina Press; Palaeontologia Electronica; 16; 1; 2-2013; 1-23 1094-8074 1532-3056 |
url |
http://hdl.handle.net/11336/11344 |
identifier_str_mv |
López Arbarello, Adriana; Sferco, Marta Emilia; Rauhut, Oliver Walter Mischa; A new genus of coccolepidid fishes (Actinopterygii, Chondrostei) from the continental jurassic of Patagonia; Coquina Press; Palaeontologia Electronica; 16; 1; 2-2013; 1-23 1094-8074 1532-3056 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://palaeo-electronica.org/content/2013/397-new-coccolepidid-from-patagonia |
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 |
dc.publisher.none.fl_str_mv |
Coquina Press |
publisher.none.fl_str_mv |
Coquina Press |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
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CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1846082856839806976 |
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13.22299 |