Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)

Autores
Allaire, Ninon; Lefebvre, Bertrand; Nardin, Elise; Martin, Emmanuel L.O.; Romain, Vaucher; Escarguel, Gilles
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The genus Rhopalocystis (Eocrinoidea, Blastozoa) is characterized by both a short stratigraphic range (Fezouata Shale, middle Tremadocian to middle Floian, Lower Ordovician) and a reduced geographic extension (Agdz-Zagora area, central Anti-Atlas, Morocco). Since the original description of its type species (R. destombesi Ubaghs, 1963), three successive revisions of the genus Rhopalocystis have led to the erection of nine additional species. The morphological disparity within this genus is here critically reassessed on the basis of both historical material and new recently collected samples. The detailed examination of all specimens, coupled with morphometric and cladistic analyses, points toward a relatively strong support for five morphotypes. A systematic revision of Rhopalocystis is thus suggested, with only five valid taxa: R. destombesi, R. fraga Chauvel, 1971, R. grandis Chauvel, 1971, R. havliceki Chauvel, 1978, and R. zagoraensis Chauvel, 1971. The five others are considered as junior synonyms (R. dehirensis Chauvel and Régnault, 1986, R. lehmani Chauvel and Régnault, 1986, R. sp. A, R. sp. B, and R. sp. C).
Fil: Allaire, Ninon. Université de Lille; Francia
Fil: Lefebvre, Bertrand. Université Claude Bernard Lyon 1; Francia
Fil: Nardin, Elise. Géosciences Environnement Toulouse; Francia
Fil: Martin, Emmanuel L.O.. Université Claude Bernard Lyon 1; Francia
Fil: Romain, Vaucher. Université Claude Bernard Lyon 1; Francia
Fil: Escarguel, Gilles. Université Claude Bernard Lyon 1; Francia
Materia
Rhopalocystis
Systematic
Morphological Disparity
Fezouata Fm
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:11336/44871
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/44871
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)Allaire, NinonLefebvre, BertrandNardin, EliseMartin, Emmanuel L.O.Romain, VaucherEscarguel, GillesRhopalocystisSystematicMorphological DisparityFezouata Fmhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The genus Rhopalocystis (Eocrinoidea, Blastozoa) is characterized by both a short stratigraphic range (Fezouata Shale, middle Tremadocian to middle Floian, Lower Ordovician) and a reduced geographic extension (Agdz-Zagora area, central Anti-Atlas, Morocco). Since the original description of its type species (R. destombesi Ubaghs, 1963), three successive revisions of the genus Rhopalocystis have led to the erection of nine additional species. The morphological disparity within this genus is here critically reassessed on the basis of both historical material and new recently collected samples. The detailed examination of all specimens, coupled with morphometric and cladistic analyses, points toward a relatively strong support for five morphotypes. A systematic revision of Rhopalocystis is thus suggested, with only five valid taxa: R. destombesi, R. fraga Chauvel, 1971, R. grandis Chauvel, 1971, R. havliceki Chauvel, 1978, and R. zagoraensis Chauvel, 1971. The five others are considered as junior synonyms (R. dehirensis Chauvel and Régnault, 1986, R. lehmani Chauvel and Régnault, 1986, R. sp. A, R. sp. B, and R. sp. C).Fil: Allaire, Ninon. Université de Lille; FranciaFil: Lefebvre, Bertrand. Université Claude Bernard Lyon 1; FranciaFil: Nardin, Elise. Géosciences Environnement Toulouse; FranciaFil: Martin, Emmanuel L.O.. Université Claude Bernard Lyon 1; FranciaFil: Romain, Vaucher. Université Claude Bernard Lyon 1; FranciaFil: Escarguel, Gilles. Université Claude Bernard Lyon 1; FranciaPaleontological Society2017-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44871Allaire, Ninon; Lefebvre, Bertrand; Nardin, Elise; Martin, Emmanuel L.O.; Romain, Vaucher; et al.; Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco); Paleontological Society; Journal of Paleontology; 91; 04; 5-2017; 685-7140022-33601937-2337CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://bit.ly/2IxPNchinfo:eu-repo/semantics/altIdentifier/doi/10.1017/jpa.2017.6info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:48:04Zoai:ri.conicet.gov.ar:11336/44871instacron: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:34982025-09-03 09:48:04.829CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
title Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
spellingShingle Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
Allaire, Ninon
Rhopalocystis
Systematic
Morphological Disparity
Fezouata Fm
title_short Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
title_full Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
title_fullStr Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
title_full_unstemmed Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
title_sort Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco)
dc.creator.none.fl_str_mv Allaire, Ninon
Lefebvre, Bertrand
Nardin, Elise
Martin, Emmanuel L.O.
Romain, Vaucher
Escarguel, Gilles
author Allaire, Ninon
author_facet Allaire, Ninon
Lefebvre, Bertrand
Nardin, Elise
Martin, Emmanuel L.O.
Romain, Vaucher
Escarguel, Gilles
author_role author
author2 Lefebvre, Bertrand
Nardin, Elise
Martin, Emmanuel L.O.
Romain, Vaucher
Escarguel, Gilles
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Rhopalocystis
Systematic
Morphological Disparity
Fezouata Fm
topic Rhopalocystis
Systematic
Morphological Disparity
Fezouata Fm
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The genus Rhopalocystis (Eocrinoidea, Blastozoa) is characterized by both a short stratigraphic range (Fezouata Shale, middle Tremadocian to middle Floian, Lower Ordovician) and a reduced geographic extension (Agdz-Zagora area, central Anti-Atlas, Morocco). Since the original description of its type species (R. destombesi Ubaghs, 1963), three successive revisions of the genus Rhopalocystis have led to the erection of nine additional species. The morphological disparity within this genus is here critically reassessed on the basis of both historical material and new recently collected samples. The detailed examination of all specimens, coupled with morphometric and cladistic analyses, points toward a relatively strong support for five morphotypes. A systematic revision of Rhopalocystis is thus suggested, with only five valid taxa: R. destombesi, R. fraga Chauvel, 1971, R. grandis Chauvel, 1971, R. havliceki Chauvel, 1978, and R. zagoraensis Chauvel, 1971. The five others are considered as junior synonyms (R. dehirensis Chauvel and Régnault, 1986, R. lehmani Chauvel and Régnault, 1986, R. sp. A, R. sp. B, and R. sp. C).
Fil: Allaire, Ninon. Université de Lille; Francia
Fil: Lefebvre, Bertrand. Université Claude Bernard Lyon 1; Francia
Fil: Nardin, Elise. Géosciences Environnement Toulouse; Francia
Fil: Martin, Emmanuel L.O.. Université Claude Bernard Lyon 1; Francia
Fil: Romain, Vaucher. Université Claude Bernard Lyon 1; Francia
Fil: Escarguel, Gilles. Université Claude Bernard Lyon 1; Francia
description The genus Rhopalocystis (Eocrinoidea, Blastozoa) is characterized by both a short stratigraphic range (Fezouata Shale, middle Tremadocian to middle Floian, Lower Ordovician) and a reduced geographic extension (Agdz-Zagora area, central Anti-Atlas, Morocco). Since the original description of its type species (R. destombesi Ubaghs, 1963), three successive revisions of the genus Rhopalocystis have led to the erection of nine additional species. The morphological disparity within this genus is here critically reassessed on the basis of both historical material and new recently collected samples. The detailed examination of all specimens, coupled with morphometric and cladistic analyses, points toward a relatively strong support for five morphotypes. A systematic revision of Rhopalocystis is thus suggested, with only five valid taxa: R. destombesi, R. fraga Chauvel, 1971, R. grandis Chauvel, 1971, R. havliceki Chauvel, 1978, and R. zagoraensis Chauvel, 1971. The five others are considered as junior synonyms (R. dehirensis Chauvel and Régnault, 1986, R. lehmani Chauvel and Régnault, 1986, R. sp. A, R. sp. B, and R. sp. C).
publishDate 2017
dc.date.none.fl_str_mv 2017-05
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/11336/44871
Allaire, Ninon; Lefebvre, Bertrand; Nardin, Elise; Martin, Emmanuel L.O.; Romain, Vaucher; et al.; Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco); Paleontological Society; Journal of Paleontology; 91; 04; 5-2017; 685-714
0022-3360
1937-2337
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44871
identifier_str_mv Allaire, Ninon; Lefebvre, Bertrand; Nardin, Elise; Martin, Emmanuel L.O.; Romain, Vaucher; et al.; Morphological disparity and systematic revision of the eocrinoid genus Rhopalocystis (Echinodermata, Blastozoa) from the Lower Ordovician of the central Anti-Atlas (Morocco); Paleontological Society; Journal of Paleontology; 91; 04; 5-2017; 685-714
0022-3360
1937-2337
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://bit.ly/2IxPNch
info:eu-repo/semantics/altIdentifier/doi/10.1017/jpa.2017.6
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 Paleontological Society
publisher.none.fl_str_mv Paleontological Society
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 13.13397

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