Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)

Autores
Bona, Paula; Fernández Blanco, María Victoria; Scheyer, Torsten M.; Foth, Christian
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Melanosuchus niger Spix is distributed throughout the Amazon River basin today. The extinct Melanosuchus fisheri Medina from the late Miocene of Venezuela was erected based on two almost complete, but heavily deformed skulls (the holotype MCNC 243 and the referred specimen MCZ 4336), which show morphological differences from each other. The comparison indicates that only the holotype can be referred to Melanosuchus Gray. We propose MCZ 4336 is a representative of the caimanine Globidentosuchus brachyrostris Scheyer, Aguilera, Delfino, Fortier, Carlini, Sánchez, Carrillo-Briceño, Quiroz and Sánchez-Villagra. Although the taxonomy of M. fisheri is taken into question herein, the classification of the holotype still sustains the hypothesis that the genus is registered in South America since the late Miocene.
Melanosuchus niger Spix se distribuye actualmente por toda la cuenca del Río Amazonas. La especie extinta Melanosuchus fisheri Medina del Mioceno tardío de Venezuela se erigió sobre la base de dos cráneos casi completos pero muy deformados (el holotipo MCNC 243 y el material referido MCZ 4336), que muestran diferencias morfológicas entre sí. La comparación indica que solo el holotipo puede ser referido a Melanosuchus Gray. Aquí se propone que MCZ 4336 es un representante del caimanino Globidentosuchus brachyrostris Scheyer, Aguilera, Delfino, Fortier, Carlini, Sánchez, Carrillo-Briceño, Quiroz and Sánchez-Villagra. Si bien la taxonomía de M. fisheri es aquí discutida, la clasificación del holotipo aún sostiene la hipótesis de que el género se registra en América del Sur desde el Mioceno tardío.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Miocene
South America
caimans
Amazonia
black caiman
Caimaninae
Neogene
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/108440

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spelling Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)El estatus taxonómico de <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea) arroja nueva luz sobre la diversidad de los caimanes del Mioceno de América del SurBona, PaulaFernández Blanco, María VictoriaScheyer, Torsten M.Foth, ChristianCiencias NaturalesMioceneSouth AmericacaimansAmazoniablack caimanCaimaninaeNeogene<i>Melanosuchus niger</i> Spix is distributed throughout the Amazon River basin today. The extinct <i>Melanosuchus fisheri</i> Medina from the late Miocene of Venezuela was erected based on two almost complete, but heavily deformed skulls (the holotype MCNC 243 and the referred specimen MCZ 4336), which show morphological differences from each other. The comparison indicates that only the holotype can be referred to Melanosuchus Gray. We propose MCZ 4336 is a representative of the caimanine <i>Globidentosuchus brachyrostris</i> Scheyer, Aguilera, Delfino, Fortier, Carlini, Sánchez, Carrillo-Briceño, Quiroz and Sánchez-Villagra. Although the taxonomy of <i>M. fisheri</i> is taken into question herein, the classification of the holotype still sustains the hypothesis that the genus is registered in South America since the late Miocene.<i>Melanosuchus niger</i> Spix se distribuye actualmente por toda la cuenca del Río Amazonas. La especie extinta <i>Melanosuchus fisheri</i> Medina del Mioceno tardío de Venezuela se erigió sobre la base de dos cráneos casi completos pero muy deformados (el holotipo MCNC 243 y el material referido MCZ 4336), que muestran diferencias morfológicas entre sí. La comparación indica que solo el holotipo puede ser referido a Melanosuchus Gray. Aquí se propone que MCZ 4336 es un representante del caimanino <i>Globidentosuchus brachyrostris</i> Scheyer, Aguilera, Delfino, Fortier, Carlini, Sánchez, Carrillo-Briceño, Quiroz and Sánchez-Villagra. Si bien la taxonomía de <i>M. fisheri</i> es aquí discutida, la clasificación del holotipo aún sostiene la hipótesis de que el género se registra en América del Sur desde el Mioceno tardío.Facultad de Ciencias Naturales y Museo2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf681-687http://sedici.unlp.edu.ar/handle/10915/108440enginfo:eu-repo/semantics/altIdentifier/url/https://bioone.org/journals/ameghiniana/volume-54/issue-6/AMGH.08.06.2017.3103/Shedding-Light-on-the-Taxonomic-Diversity-of-the-South-American/10.5710/AMGH.08.06.2017.3103.shortinfo:eu-repo/semantics/altIdentifier/issn/0002-7014info:eu-repo/semantics/altIdentifier/doi/10.5710/amgh.08.06.2017.3103info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:16:27Zoai:sedici.unlp.edu.ar:10915/108440Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:16:27.703SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
El estatus taxonómico de <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea) arroja nueva luz sobre la diversidad de los caimanes del Mioceno de América del Sur
title Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
spellingShingle Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
Bona, Paula
Ciencias Naturales
Miocene
South America
caimans
Amazonia
black caiman
Caimaninae
Neogene
title_short Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
title_full Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
title_fullStr Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
title_full_unstemmed Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
title_sort Shedding light on the taxonomic diversity of the South American Miocene caimans: the status of <i>Melanosuchus fisheri</i> (Crocodylia, Alligatoroidea)
dc.creator.none.fl_str_mv Bona, Paula
Fernández Blanco, María Victoria
Scheyer, Torsten M.
Foth, Christian
author Bona, Paula
author_facet Bona, Paula
Fernández Blanco, María Victoria
Scheyer, Torsten M.
Foth, Christian
author_role author
author2 Fernández Blanco, María Victoria
Scheyer, Torsten M.
Foth, Christian
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Naturales
Miocene
South America
caimans
Amazonia
black caiman
Caimaninae
Neogene
topic Ciencias Naturales
Miocene
South America
caimans
Amazonia
black caiman
Caimaninae
Neogene
dc.description.none.fl_txt_mv <i>Melanosuchus niger</i> Spix is distributed throughout the Amazon River basin today. The extinct <i>Melanosuchus fisheri</i> Medina from the late Miocene of Venezuela was erected based on two almost complete, but heavily deformed skulls (the holotype MCNC 243 and the referred specimen MCZ 4336), which show morphological differences from each other. The comparison indicates that only the holotype can be referred to Melanosuchus Gray. We propose MCZ 4336 is a representative of the caimanine <i>Globidentosuchus brachyrostris</i> Scheyer, Aguilera, Delfino, Fortier, Carlini, Sánchez, Carrillo-Briceño, Quiroz and Sánchez-Villagra. Although the taxonomy of <i>M. fisheri</i> is taken into question herein, the classification of the holotype still sustains the hypothesis that the genus is registered in South America since the late Miocene.
<i>Melanosuchus niger</i> Spix se distribuye actualmente por toda la cuenca del Río Amazonas. La especie extinta <i>Melanosuchus fisheri</i> Medina del Mioceno tardío de Venezuela se erigió sobre la base de dos cráneos casi completos pero muy deformados (el holotipo MCNC 243 y el material referido MCZ 4336), que muestran diferencias morfológicas entre sí. La comparación indica que solo el holotipo puede ser referido a Melanosuchus Gray. Aquí se propone que MCZ 4336 es un representante del caimanino <i>Globidentosuchus brachyrostris</i> Scheyer, Aguilera, Delfino, Fortier, Carlini, Sánchez, Carrillo-Briceño, Quiroz and Sánchez-Villagra. Si bien la taxonomía de <i>M. fisheri</i> es aquí discutida, la clasificación del holotipo aún sostiene la hipótesis de que el género se registra en América del Sur desde el Mioceno tardío.
Facultad de Ciencias Naturales y Museo
description <i>Melanosuchus niger</i> Spix is distributed throughout the Amazon River basin today. The extinct <i>Melanosuchus fisheri</i> Medina from the late Miocene of Venezuela was erected based on two almost complete, but heavily deformed skulls (the holotype MCNC 243 and the referred specimen MCZ 4336), which show morphological differences from each other. The comparison indicates that only the holotype can be referred to Melanosuchus Gray. We propose MCZ 4336 is a representative of the caimanine <i>Globidentosuchus brachyrostris</i> Scheyer, Aguilera, Delfino, Fortier, Carlini, Sánchez, Carrillo-Briceño, Quiroz and Sánchez-Villagra. Although the taxonomy of <i>M. fisheri</i> is taken into question herein, the classification of the holotype still sustains the hypothesis that the genus is registered in South America since the late Miocene.
publishDate 2017
dc.date.none.fl_str_mv 2017
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