Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal)
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/7633 |
Resumo: | This paper presents a synthesis of the occurrence of extinct gymnosperms related to the Bennettitales, Erdtmanithecales and Gnetales group and discusses the stratigraphic setting of previously described specimens. These plants are represented by small fossil seeds collected from Lower Cretaceous (Berriasian to Lower Albian) fluvial siliciclastic deposits of the Lusitanian Basin, western Portugal, and probably constitute a monophyletic group, the BEG complex. The fossil seeds are composed of an innermost membranous nucellus preserved as a delicate cuticle. The nucellus is evolved by a membranous integument surrounded by a sclerenchymatic outer envelope. Plants from the BEG complex were contemporary of the earliest angiosperm having shared ecosystems with similar environmental characteristics, what reinforces its paleoecological importance. |
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Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal)Bennettitales .ErdtmanithecalesGnetales,mesofósseis,Cretácico InferiorPortugalThis paper presents a synthesis of the occurrence of extinct gymnosperms related to the Bennettitales, Erdtmanithecales and Gnetales group and discusses the stratigraphic setting of previously described specimens. These plants are represented by small fossil seeds collected from Lower Cretaceous (Berriasian to Lower Albian) fluvial siliciclastic deposits of the Lusitanian Basin, western Portugal, and probably constitute a monophyletic group, the BEG complex. The fossil seeds are composed of an innermost membranous nucellus preserved as a delicate cuticle. The nucellus is evolved by a membranous integument surrounded by a sclerenchymatic outer envelope. Plants from the BEG complex were contemporary of the earliest angiosperm having shared ecosystems with similar environmental characteristics, what reinforces its paleoecological importance.Comunicações Geológicas2013-01-23T10:07:36Z2013-01-232012-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/7633http://hdl.handle.net/10174/7633porComunicações Geológicas (2012) 99, 1, 11-18mmmendes@mail.telepac.ptndacaceres@uevora.ptjjp@fct.unl.pt248Mendes, M.M.Dinis, J.L.Balbino, A.C.Pais, Jinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:47:36Zoai:dspace.uevora.pt:10174/7633Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:01:55.702216Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) |
title |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) |
spellingShingle |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) Mendes, M.M. Bennettitales . Erdtmanithecales Gnetales, mesofósseis, Cretácico Inferior Portugal |
title_short |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) |
title_full |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) |
title_fullStr |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) |
title_full_unstemmed |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) |
title_sort |
Bennettitales, Erdtmanithecales and Gnetales from the Early Cretaceous of the Lusitanian Basin (western Portugal) |
author |
Mendes, M.M. |
author_facet |
Mendes, M.M. Dinis, J.L. Balbino, A.C. Pais, J |
author_role |
author |
author2 |
Dinis, J.L. Balbino, A.C. Pais, J |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Mendes, M.M. Dinis, J.L. Balbino, A.C. Pais, J |
dc.subject.por.fl_str_mv |
Bennettitales . Erdtmanithecales Gnetales, mesofósseis, Cretácico Inferior Portugal |
topic |
Bennettitales . Erdtmanithecales Gnetales, mesofósseis, Cretácico Inferior Portugal |
description |
This paper presents a synthesis of the occurrence of extinct gymnosperms related to the Bennettitales, Erdtmanithecales and Gnetales group and discusses the stratigraphic setting of previously described specimens. These plants are represented by small fossil seeds collected from Lower Cretaceous (Berriasian to Lower Albian) fluvial siliciclastic deposits of the Lusitanian Basin, western Portugal, and probably constitute a monophyletic group, the BEG complex. The fossil seeds are composed of an innermost membranous nucellus preserved as a delicate cuticle. The nucellus is evolved by a membranous integument surrounded by a sclerenchymatic outer envelope. Plants from the BEG complex were contemporary of the earliest angiosperm having shared ecosystems with similar environmental characteristics, what reinforces its paleoecological importance. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-01T00:00:00Z 2013-01-23T10:07:36Z 2013-01-23 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/7633 http://hdl.handle.net/10174/7633 |
url |
http://hdl.handle.net/10174/7633 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Comunicações Geológicas (2012) 99, 1, 11-18 mmmendes@mail.telepac.pt nd acaceres@uevora.pt jjp@fct.unl.pt 248 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Comunicações Geológicas |
publisher.none.fl_str_mv |
Comunicações Geológicas |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
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1799136503148838912 |