Marattiaceae synangia from the Lower Cretaceous of Antarctica

Marattiaceous ferns are conspicuous fossil element in upper Paleozoic and lower Mesozoic deposits, but become rarer to almost absent in Cretaceous to Holocene deposits. In this contribution, fragmentary synangia recovered from the Aptian Cerro Negro Formation (Livingston Island, Antarctica) are desc...

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Published in:Review of Palaeobotany and Palynology
Main Authors: Vera, Ezequiel Ignacio, Cesari, Silvia Nelida
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier Science
Subjects:
ANTARCTICA
CRETACEOUS
EUSPORANGIATE
FERNS
FOSSIL
MARATTIACEAE
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
Argentina
Argentino
Cerro Negro
Livingston Island
Silvia
Antarc*
Antarctica
Online Access:http://hdl.handle.net/11336/46831
id ftconicet:oai:ri.conicet.gov.ar:11336/46831
record_format openpolar
spelling ftconicet:oai:ri.conicet.gov.ar:11336/46831 2023-10-09T21:47:15+02:00 Marattiaceae synangia from the Lower Cretaceous of Antarctica Vera, Ezequiel Ignacio Cesari, Silvia Nelida application/pdf http://hdl.handle.net/11336/46831 eng eng Elsevier Science info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2016.09.007 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666716301051 http://hdl.handle.net/11336/46831 Vera, Ezequiel Ignacio; Cesari, Silvia Nelida; Marattiaceae synangia from the Lower Cretaceous of Antarctica; Elsevier Science; Review of Palaeobotany and Palynology; 235; 12-2016; 6-10 0034-6667 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ ANTARCTICA CRETACEOUS EUSPORANGIATE FERNS FOSSIL MARATTIACEAE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/1.6 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1016/j.revpalbo.2016.09.007 2023-09-24T20:27:55Z Marattiaceous ferns are conspicuous fossil element in upper Paleozoic and lower Mesozoic deposits, but become rarer to almost absent in Cretaceous to Holocene deposits. In this contribution, fragmentary synangia recovered from the Aptian Cerro Negro Formation (Livingston Island, Antarctica) are described. Synangia are bivalvate, containing at least four lachrymiform sporangia per valve. Valves are fused at the base, and connect to the leaf blade by a short peduncle. Sporangia contain more than 400 oval to reniform (probably monolete), smooth to microgranulate spores. The reproductive structures have morphological similarities with extant Marattia and Ptisana, and the apparent absence of labia suggests a closer relationship with the latter genus. The presence of Marattiaceae, along with previously described ferns (e.g. Cyatheales) supports warm climatic conditions during the Aptian in this region of Antarctica. Fil: Vera, Ezequiel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina Fil: Cesari, Silvia Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina Article in Journal/Newspaper Antarc* Antarctica Livingston Island CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Argentino Cerro Negro ENVELOPE(-61.002,-61.002,-62.655,-62.655) Livingston Island ENVELOPE(-60.500,-60.500,-62.600,-62.600) Silvia ENVELOPE(-57.900,-57.900,-63.300,-63.300) Review of Palaeobotany and Palynology 235 6 10
institution Open Polar
collection CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas)
op_collection_id ftconicet
language English
topic ANTARCTICA
CRETACEOUS
EUSPORANGIATE
FERNS
FOSSIL
MARATTIACEAE
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
spellingShingle ANTARCTICA
CRETACEOUS
EUSPORANGIATE
FERNS
FOSSIL
MARATTIACEAE
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
Vera, Ezequiel Ignacio
Cesari, Silvia Nelida
Marattiaceae synangia from the Lower Cretaceous of Antarctica
topic_facet ANTARCTICA
CRETACEOUS
EUSPORANGIATE
FERNS
FOSSIL
MARATTIACEAE
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.6
description Marattiaceous ferns are conspicuous fossil element in upper Paleozoic and lower Mesozoic deposits, but become rarer to almost absent in Cretaceous to Holocene deposits. In this contribution, fragmentary synangia recovered from the Aptian Cerro Negro Formation (Livingston Island, Antarctica) are described. Synangia are bivalvate, containing at least four lachrymiform sporangia per valve. Valves are fused at the base, and connect to the leaf blade by a short peduncle. Sporangia contain more than 400 oval to reniform (probably monolete), smooth to microgranulate spores. The reproductive structures have morphological similarities with extant Marattia and Ptisana, and the apparent absence of labia suggests a closer relationship with the latter genus. The presence of Marattiaceae, along with previously described ferns (e.g. Cyatheales) supports warm climatic conditions during the Aptian in this region of Antarctica. Fil: Vera, Ezequiel Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Geología; Argentina Fil: Cesari, Silvia Nelida. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
format Article in Journal/Newspaper
author Vera, Ezequiel Ignacio
Cesari, Silvia Nelida
author_facet Vera, Ezequiel Ignacio
Cesari, Silvia Nelida
author_sort Vera, Ezequiel Ignacio
title Marattiaceae synangia from the Lower Cretaceous of Antarctica
title_short Marattiaceae synangia from the Lower Cretaceous of Antarctica
title_full Marattiaceae synangia from the Lower Cretaceous of Antarctica
title_fullStr Marattiaceae synangia from the Lower Cretaceous of Antarctica
title_full_unstemmed Marattiaceae synangia from the Lower Cretaceous of Antarctica
title_sort marattiaceae synangia from the lower cretaceous of antarctica
publisher Elsevier Science
url http://hdl.handle.net/11336/46831
long_lat ENVELOPE(-61.002,-61.002,-62.655,-62.655)
ENVELOPE(-60.500,-60.500,-62.600,-62.600)
ENVELOPE(-57.900,-57.900,-63.300,-63.300)
geographic Argentina
Argentino
Cerro Negro
Livingston Island
Silvia
geographic_facet Argentina
Argentino
Cerro Negro
Livingston Island
Silvia
genre Antarc*
Antarctica
Livingston Island
genre_facet Antarc*
Antarctica
Livingston Island
op_relation info:eu-repo/semantics/altIdentifier/doi/10.1016/j.revpalbo.2016.09.007
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666716301051
http://hdl.handle.net/11336/46831
Vera, Ezequiel Ignacio; Cesari, Silvia Nelida; Marattiaceae synangia from the Lower Cretaceous of Antarctica; Elsevier Science; Review of Palaeobotany and Palynology; 235; 12-2016; 6-10
0034-6667
CONICET Digital
CONICET
op_rights info:eu-repo/semantics/restrictedAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
op_doi https://doi.org/10.1016/j.revpalbo.2016.09.007
container_title Review of Palaeobotany and Palynology
container_volume 235
container_start_page 6
op_container_end_page 10
_version_ 1779310230309437440

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