Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina

Autores
Tortello, Marcelo Franco
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Lotagnostus is a biostratigraphically important late Furongian (late Cambrian) agnostoid trilobite whose interspecific and intraspecific variability is currently under discussion. In this context, type material of Lotagnostus atenuatus Rusconi, from an open-marine black limestone allochthonous block (La Cruz Olistolith) of Quebrada San Isidro, Precordillera of Mendoza, western Argentina, is revised herein. It includes several three-dimensionally preserved sclerites, allowing for an emended diagnosis of this species and comprehensive comparisons with other forms of Lotagnostus. Although to date L. atenuatus can be identified with confidence only at Quebrada San Isidro, it strongly resembles fragmentary material of Lotagnostus sp. indet., from late Furongian dysoxic upper slope facies of the Central Appalachians in eastern North America. The olenid Mendoparabolina brevicauda Rusconi, which is recorded in association with L. atenuatus, is also redescribed here. Mendoparabolina is closely allied with Wujiajiania Lu and Lin and Bienvillia Clark, differing by having a proportionately long and transversely bilobate pygidium with a posteriorly truncate axis and a postaxial median ridge.
Facultad de Ciencias Naturales y Museo
Materia
Ciencias Naturales
Furongian
Trilobita
Lotagnostus
Mendoparabolina
Precordillera
Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/141321
Acceder
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network_name_str SEDICI (UNLP)
spelling Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, ArgentinaTortello, Marcelo FrancoCiencias NaturalesFurongianTrilobitaLotagnostusMendoparabolinaPrecordilleraArgentinaLotagnostus is a biostratigraphically important late Furongian (late Cambrian) agnostoid trilobite whose interspecific and intraspecific variability is currently under discussion. In this context, type material of Lotagnostus atenuatus Rusconi, from an open-marine black limestone allochthonous block (La Cruz Olistolith) of Quebrada San Isidro, Precordillera of Mendoza, western Argentina, is revised herein. It includes several three-dimensionally preserved sclerites, allowing for an emended diagnosis of this species and comprehensive comparisons with other forms of Lotagnostus. Although to date L. atenuatus can be identified with confidence only at Quebrada San Isidro, it strongly resembles fragmentary material of Lotagnostus sp. indet., from late Furongian dysoxic upper slope facies of the Central Appalachians in eastern North America. The olenid Mendoparabolina brevicauda Rusconi, which is recorded in association with L. atenuatus, is also redescribed here. Mendoparabolina is closely allied with Wujiajiania Lu and Lin and Bienvillia Clark, differing by having a proportionately long and transversely bilobate pygidium with a posteriorly truncate axis and a postaxial median ridge.Facultad de Ciencias Naturales y Museo2018-03-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf373-386http://sedici.unlp.edu.ar/handle/10915/141321enginfo:eu-repo/semantics/altIdentifier/issn/0031-0220info:eu-repo/semantics/altIdentifier/issn/1867-6812info:eu-repo/semantics/altIdentifier/doi/10.1007/s12542-018-0403-yinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:23:59Zoai:sedici.unlp.edu.ar:10915/141321Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:59.311SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
title Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
spellingShingle Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
Tortello, Marcelo Franco
Ciencias Naturales
Furongian
Trilobita
Lotagnostus
Mendoparabolina
Precordillera
Argentina
title_short Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
title_full Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
title_fullStr Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
title_full_unstemmed Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
title_sort Redescription of a <i>Lotagnostus–Mendoparabolina</i> faunule (Trilobita; late Furongian) from Quebrada San Isidro, Precordillera of Mendoza, Argentina
dc.creator.none.fl_str_mv Tortello, Marcelo Franco
author Tortello, Marcelo Franco
author_facet Tortello, Marcelo Franco
author_role author
dc.subject.none.fl_str_mv Ciencias Naturales
Furongian
Trilobita
Lotagnostus
Mendoparabolina
Precordillera
Argentina
topic Ciencias Naturales
Furongian
Trilobita
Lotagnostus
Mendoparabolina
Precordillera
Argentina
dc.description.none.fl_txt_mv Lotagnostus is a biostratigraphically important late Furongian (late Cambrian) agnostoid trilobite whose interspecific and intraspecific variability is currently under discussion. In this context, type material of Lotagnostus atenuatus Rusconi, from an open-marine black limestone allochthonous block (La Cruz Olistolith) of Quebrada San Isidro, Precordillera of Mendoza, western Argentina, is revised herein. It includes several three-dimensionally preserved sclerites, allowing for an emended diagnosis of this species and comprehensive comparisons with other forms of Lotagnostus. Although to date L. atenuatus can be identified with confidence only at Quebrada San Isidro, it strongly resembles fragmentary material of Lotagnostus sp. indet., from late Furongian dysoxic upper slope facies of the Central Appalachians in eastern North America. The olenid Mendoparabolina brevicauda Rusconi, which is recorded in association with L. atenuatus, is also redescribed here. Mendoparabolina is closely allied with Wujiajiania Lu and Lin and Bienvillia Clark, differing by having a proportionately long and transversely bilobate pygidium with a posteriorly truncate axis and a postaxial median ridge.
Facultad de Ciencias Naturales y Museo
description Lotagnostus is a biostratigraphically important late Furongian (late Cambrian) agnostoid trilobite whose interspecific and intraspecific variability is currently under discussion. In this context, type material of Lotagnostus atenuatus Rusconi, from an open-marine black limestone allochthonous block (La Cruz Olistolith) of Quebrada San Isidro, Precordillera of Mendoza, western Argentina, is revised herein. It includes several three-dimensionally preserved sclerites, allowing for an emended diagnosis of this species and comprehensive comparisons with other forms of Lotagnostus. Although to date L. atenuatus can be identified with confidence only at Quebrada San Isidro, it strongly resembles fragmentary material of Lotagnostus sp. indet., from late Furongian dysoxic upper slope facies of the Central Appalachians in eastern North America. The olenid Mendoparabolina brevicauda Rusconi, which is recorded in association with L. atenuatus, is also redescribed here. Mendoparabolina is closely allied with Wujiajiania Lu and Lin and Bienvillia Clark, differing by having a proportionately long and transversely bilobate pygidium with a posteriorly truncate axis and a postaxial median ridge.
publishDate 2018
dc.date.none.fl_str_mv 2018-03-15
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
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status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/141321
url http://sedici.unlp.edu.ar/handle/10915/141321
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0031-0220
info:eu-repo/semantics/altIdentifier/issn/1867-6812
info:eu-repo/semantics/altIdentifier/doi/10.1007/s12542-018-0403-y
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
373-386
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
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