Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina

Autores
Villar, Liliana Monica
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Cuticles of leaves and scale-leaves belonging to the order Bennettitales are discussed using light microscopy (LM) and scanning and transmission electron microscopy (SEM and TEM). The cuticles occur in the Springhill Formation (Lower Cretaceous) of Santa Cruz Province, Argentina. The fossil group is represented by seven species of which one is new and three other species have their diagnosis emended by ultrastructural analysis. The species studied are Otozamites patagonicus sp. nov., Otozamites archangelskyi Baldoni and Taylor, 1983, Pterophyllum trichomatosum Archangelsky and Baldoni, 1972, Ptilophyllum valvatum Villar de Seoane, 1995, Ptilophyllum antarcticum (Halle) Archangelsky and Baldoni, 1972, Cycadolepis coriacea Menéndez, 1966 and Cycadolepis involuta Menéndez, 1966. The leaves and scale-leaves show xeromorphic characters such as sculptured surfaces, sunken stomata and a thick external wall in the epidermis. The xeromorphic characters could indicate high temperatures, low humidity and arid soils. These palaeoenvironmental conditions may have been associated with volcanic activity. The presence of carbonized specimens also suggests the development of forest fires produced by dry seasonal conditions or regional volcanic activity.
Fil: Villar, Liliana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Materia
ARGENTINA
BENNETTITALES
CUTICLES
LOWER CRETACEOUS
SANTA CRUZ PROVINCE
SPRINGHILL FORMATION
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:11336/136898
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/136898
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, ArgentinaVillar, Liliana MonicaARGENTINABENNETTITALESCUTICLESLOWER CRETACEOUSSANTA CRUZ PROVINCESPRINGHILL FORMATIONhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Cuticles of leaves and scale-leaves belonging to the order Bennettitales are discussed using light microscopy (LM) and scanning and transmission electron microscopy (SEM and TEM). The cuticles occur in the Springhill Formation (Lower Cretaceous) of Santa Cruz Province, Argentina. The fossil group is represented by seven species of which one is new and three other species have their diagnosis emended by ultrastructural analysis. The species studied are Otozamites patagonicus sp. nov., Otozamites archangelskyi Baldoni and Taylor, 1983, Pterophyllum trichomatosum Archangelsky and Baldoni, 1972, Ptilophyllum valvatum Villar de Seoane, 1995, Ptilophyllum antarcticum (Halle) Archangelsky and Baldoni, 1972, Cycadolepis coriacea Menéndez, 1966 and Cycadolepis involuta Menéndez, 1966. The leaves and scale-leaves show xeromorphic characters such as sculptured surfaces, sunken stomata and a thick external wall in the epidermis. The xeromorphic characters could indicate high temperatures, low humidity and arid soils. These palaeoenvironmental conditions may have been associated with volcanic activity. The presence of carbonized specimens also suggests the development of forest fires produced by dry seasonal conditions or regional volcanic activity.Fil: Villar, Liliana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaAcademic Press Ltd - Elsevier Science Ltd2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/136898Villar, Liliana Monica; Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 22; 4; 12-2001; 461-4790195-6671CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1006/cres.2001.0266info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0195667101902666?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:08:33Zoai:ri.conicet.gov.ar:11336/136898instacron: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 15:08:33.673CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
title Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
spellingShingle Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
Villar, Liliana Monica
ARGENTINA
BENNETTITALES
CUTICLES
LOWER CRETACEOUS
SANTA CRUZ PROVINCE
SPRINGHILL FORMATION
title_short Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
title_full Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
title_fullStr Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
title_full_unstemmed Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
title_sort Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina
dc.creator.none.fl_str_mv Villar, Liliana Monica
author Villar, Liliana Monica
author_facet Villar, Liliana Monica
author_role author
dc.subject.none.fl_str_mv ARGENTINA
BENNETTITALES
CUTICLES
LOWER CRETACEOUS
SANTA CRUZ PROVINCE
SPRINGHILL FORMATION
topic ARGENTINA
BENNETTITALES
CUTICLES
LOWER CRETACEOUS
SANTA CRUZ PROVINCE
SPRINGHILL FORMATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Cuticles of leaves and scale-leaves belonging to the order Bennettitales are discussed using light microscopy (LM) and scanning and transmission electron microscopy (SEM and TEM). The cuticles occur in the Springhill Formation (Lower Cretaceous) of Santa Cruz Province, Argentina. The fossil group is represented by seven species of which one is new and three other species have their diagnosis emended by ultrastructural analysis. The species studied are Otozamites patagonicus sp. nov., Otozamites archangelskyi Baldoni and Taylor, 1983, Pterophyllum trichomatosum Archangelsky and Baldoni, 1972, Ptilophyllum valvatum Villar de Seoane, 1995, Ptilophyllum antarcticum (Halle) Archangelsky and Baldoni, 1972, Cycadolepis coriacea Menéndez, 1966 and Cycadolepis involuta Menéndez, 1966. The leaves and scale-leaves show xeromorphic characters such as sculptured surfaces, sunken stomata and a thick external wall in the epidermis. The xeromorphic characters could indicate high temperatures, low humidity and arid soils. These palaeoenvironmental conditions may have been associated with volcanic activity. The presence of carbonized specimens also suggests the development of forest fires produced by dry seasonal conditions or regional volcanic activity.
Fil: Villar, Liliana Monica. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
description Cuticles of leaves and scale-leaves belonging to the order Bennettitales are discussed using light microscopy (LM) and scanning and transmission electron microscopy (SEM and TEM). The cuticles occur in the Springhill Formation (Lower Cretaceous) of Santa Cruz Province, Argentina. The fossil group is represented by seven species of which one is new and three other species have their diagnosis emended by ultrastructural analysis. The species studied are Otozamites patagonicus sp. nov., Otozamites archangelskyi Baldoni and Taylor, 1983, Pterophyllum trichomatosum Archangelsky and Baldoni, 1972, Ptilophyllum valvatum Villar de Seoane, 1995, Ptilophyllum antarcticum (Halle) Archangelsky and Baldoni, 1972, Cycadolepis coriacea Menéndez, 1966 and Cycadolepis involuta Menéndez, 1966. The leaves and scale-leaves show xeromorphic characters such as sculptured surfaces, sunken stomata and a thick external wall in the epidermis. The xeromorphic characters could indicate high temperatures, low humidity and arid soils. These palaeoenvironmental conditions may have been associated with volcanic activity. The presence of carbonized specimens also suggests the development of forest fires produced by dry seasonal conditions or regional volcanic activity.
publishDate 2001
dc.date.none.fl_str_mv 2001-12
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/11336/136898
Villar, Liliana Monica; Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 22; 4; 12-2001; 461-479
0195-6671
CONICET Digital
CONICET
url http://hdl.handle.net/11336/136898
identifier_str_mv Villar, Liliana Monica; Cuticular study of Bennettitales from the Springhill Formation, Lower Cretaceous of Patagonia, Argentina; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 22; 4; 12-2001; 461-479
0195-6671
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1006/cres.2001.0266
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0195667101902666?via%3Dihub
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 Academic Press Ltd - Elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
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 13.22299

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