Morphology of the megaspore <i>Lagenoisporites magnus</i> (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia

The morphology and structure of megaspores assigned to Lagenoisporites magnus from the Toregua Formation, Retama Group, mid-upper Tournaisian of Bolivia were studied. The analysis was performed with light, fluorescence and scanning electron microscopy. Megaspores were laterally compressed and presen...

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Autores principales: Quetglas, Marcela Alejandra, Macluf, Carmen Cecilia, Di Pasquo, María de las Mercedes
Formato: Articulo
Lenguaje:Inglés
Publicado: 2019
Materias:
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123434
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id I19-R120-10915-123434
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Botánica
Bolivia
Carboniferous
Lycopsids
Megaspores
Tournaisian
spellingShingle Botánica
Bolivia
Carboniferous
Lycopsids
Megaspores
Tournaisian
Quetglas, Marcela Alejandra
Macluf, Carmen Cecilia
Di Pasquo, María de las Mercedes
Morphology of the megaspore <i>Lagenoisporites magnus</i> (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia
topic_facet Botánica
Bolivia
Carboniferous
Lycopsids
Megaspores
Tournaisian
description The morphology and structure of megaspores assigned to Lagenoisporites magnus from the Toregua Formation, Retama Group, mid-upper Tournaisian of Bolivia were studied. The analysis was performed with light, fluorescence and scanning electron microscopy. Megaspores were laterally compressed and presented a spherical body with a proximal gula, of the hologula type. Gula had verrucae ornamentation and the spore body presented complex processes consisting of a bulbous base and an internally partitioned projection with sharp apex. In addition to this main ornamentation, perforations were present throughout the spore surface. Megaspores showed well marked curvaturae perfectae due to the abrupt transition existing between the gula ornamentation and the spore body processes. These megaspores were assigned to heterosporous arborescent lycopsids of the Lepidocarpaceae family, as in section view, exospore structure presented a three-dimensional network of fused elements. Likewise, due to a similarity found between sporoderm and Isoetes L. structure, it is evident that megaspores structure has remained intact inside the heterosporous lycopsids. Therefore; the L. magnus structure not only would confirm its affinity with the Lycophyta fossils but also with the living ones.
format Articulo
Articulo
author Quetglas, Marcela Alejandra
Macluf, Carmen Cecilia
Di Pasquo, María de las Mercedes
author_facet Quetglas, Marcela Alejandra
Macluf, Carmen Cecilia
Di Pasquo, María de las Mercedes
author_sort Quetglas, Marcela Alejandra
title Morphology of the megaspore <i>Lagenoisporites magnus</i> (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia
title_short Morphology of the megaspore <i>Lagenoisporites magnus</i> (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia
title_full Morphology of the megaspore <i>Lagenoisporites magnus</i> (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia
title_fullStr Morphology of the megaspore <i>Lagenoisporites magnus</i> (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia
title_full_unstemmed Morphology of the megaspore <i>Lagenoisporites magnus</i> (Chi and Hills 1976) Candilier et al. (1982), from the Carboniferous (lower Mississippian: mid-upper Tournaisian) of Bolivia
title_sort morphology of the megaspore <i>lagenoisporites magnus</i> (chi and hills 1976) candilier et al. (1982), from the carboniferous (lower mississippian: mid-upper tournaisian) of bolivia
publishDate 2019
url http://sedici.unlp.edu.ar/handle/10915/123434
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