Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica
A new genus and species, Notonuphar antarctica, is described from the Eocene of Seymour (Marambio) Island, the Antarctic Peninsula and assigned to the Nymphaeales based on well-preserved seeds. This is the first record of a water lily from Antarctica and the first record of a Gondwanan plant with cl...
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ftconicet:oai:ri.conicet.gov.ar:11336/49547 2023-10-09T21:47:13+02:00 Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica Friis, Else M. Iglesias, Ari Reguero, Marcelo Alfredo Mörs, Thomas application/pdf http://hdl.handle.net/11336/49547 eng eng Springer Wien info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00606-017-1422-y info:eu-repo/semantics/altIdentifier/doi/10.1007/s00606-017-1422-y http://hdl.handle.net/11336/49547 Friis, Else M.; Iglesias, Ari; Reguero, Marcelo Alfredo; Mörs, Thomas; Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica; Springer Wien; Plant Systematics and Evolution; 303; 7; 6-2017; 969-980 0378-2697 CONICET Digital CONICET info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ ANTARCTIC PENINSULA BASAL ANGIOSPERMS FOSSIL SEEDS GONDWANA NUPHAR PALEOGENE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.1007/s00606-017-1422-y 2023-09-24T20:24:26Z A new genus and species, Notonuphar antarctica, is described from the Eocene of Seymour (Marambio) Island, the Antarctic Peninsula and assigned to the Nymphaeales based on well-preserved seeds. This is the first record of a water lily from Antarctica and the first record of a Gondwanan plant with close link to the genus Nuphar (Nymphaeaceae), which is restricted today to the Northern Hemisphere. Critical features for systematic placement of Notonuphar are the presence of a germination cap with closely spaced hilar scar and micropyle, anatropous, bitegmic and exotestal seed organization, exotesta composed of one cell layer of high sclerenchymatic palisade-shape cells, mesotesta of smaller, low parenchymatic cells, a few cell layers deep, and a thin tegmen. The seeds of Notonuphar are particularly similar to seeds of extant and fossil Nuphar in the straight, unfolded anticlinal wall of the exotestal cells and the presence of a narrow zone of exotestal tissue between hilum and micropyle. Other seed features including the very tall exotestal cells and strongly thickened cell walls of exotesta also link Notonuphar to Brasenia and related fossil taxa (Cabombaceae). This character mosaic observed in Notonuphar corroborates the transitional position of Nuphar between Cabombaceae and Nymphaeaceae. Notonuphar is the only member of Nymphaeales recorded from Antarctica and so far the only fossil seeds of Nymphaeales known from the Southern Hemisphere. The discovery of this extinct Gondwanan taxon with features suggesting close relationship with extant Northern Hemisphere genus Nuphar is a further evidence for the relictual nature of the extant group. Fil: Friis, Else M. Museo de Historia Natural de Estocolmo; Suecia Fil: Iglesias, Ari. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Antarctic The Antarctic Antarctic Peninsula Patagonia Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Suecia ENVELOPE(-62.617,-62.617,-66.733,-66.733) Ari ENVELOPE(147.813,147.813,59.810,59.810) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) Plant Systematics and Evolution 303 7 969 980 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
ANTARCTIC PENINSULA BASAL ANGIOSPERMS FOSSIL SEEDS GONDWANA NUPHAR PALEOGENE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
ANTARCTIC PENINSULA BASAL ANGIOSPERMS FOSSIL SEEDS GONDWANA NUPHAR PALEOGENE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Friis, Else M. Iglesias, Ari Reguero, Marcelo Alfredo Mörs, Thomas Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica |
topic_facet |
ANTARCTIC PENINSULA BASAL ANGIOSPERMS FOSSIL SEEDS GONDWANA NUPHAR PALEOGENE https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
A new genus and species, Notonuphar antarctica, is described from the Eocene of Seymour (Marambio) Island, the Antarctic Peninsula and assigned to the Nymphaeales based on well-preserved seeds. This is the first record of a water lily from Antarctica and the first record of a Gondwanan plant with close link to the genus Nuphar (Nymphaeaceae), which is restricted today to the Northern Hemisphere. Critical features for systematic placement of Notonuphar are the presence of a germination cap with closely spaced hilar scar and micropyle, anatropous, bitegmic and exotestal seed organization, exotesta composed of one cell layer of high sclerenchymatic palisade-shape cells, mesotesta of smaller, low parenchymatic cells, a few cell layers deep, and a thin tegmen. The seeds of Notonuphar are particularly similar to seeds of extant and fossil Nuphar in the straight, unfolded anticlinal wall of the exotestal cells and the presence of a narrow zone of exotestal tissue between hilum and micropyle. Other seed features including the very tall exotestal cells and strongly thickened cell walls of exotesta also link Notonuphar to Brasenia and related fossil taxa (Cabombaceae). This character mosaic observed in Notonuphar corroborates the transitional position of Nuphar between Cabombaceae and Nymphaeaceae. Notonuphar is the only member of Nymphaeales recorded from Antarctica and so far the only fossil seeds of Nymphaeales known from the Southern Hemisphere. The discovery of this extinct Gondwanan taxon with features suggesting close relationship with extant Northern Hemisphere genus Nuphar is a further evidence for the relictual nature of the extant group. Fil: Friis, Else M. Museo de Historia Natural de Estocolmo; Suecia Fil: Iglesias, Ari. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigaciones en Biodiversidad y Medioambiente. Universidad Nacional del Comahue. Centro Regional Universidad Bariloche. Instituto de Investigaciones en ... |
format |
Article in Journal/Newspaper |
author |
Friis, Else M. Iglesias, Ari Reguero, Marcelo Alfredo Mörs, Thomas |
author_facet |
Friis, Else M. Iglesias, Ari Reguero, Marcelo Alfredo Mörs, Thomas |
author_sort |
Friis, Else M. |
title |
Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica |
title_short |
Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica |
title_full |
Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica |
title_fullStr |
Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica |
title_full_unstemmed |
Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica |
title_sort |
notonuphar antarctica, an extinct water lily (nymphaeales) from the eocene of antarctica |
publisher |
Springer Wien |
url |
http://hdl.handle.net/11336/49547 |
long_lat |
ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-62.617,-62.617,-66.733,-66.733) ENVELOPE(147.813,147.813,59.810,59.810) ENVELOPE(-56.750,-56.750,-64.283,-64.283) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Patagonia Seymour Suecia Ari Marambio |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Patagonia Seymour Suecia Ari Marambio |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica |
op_relation |
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/10.1007/s00606-017-1422-y info:eu-repo/semantics/altIdentifier/doi/10.1007/s00606-017-1422-y http://hdl.handle.net/11336/49547 Friis, Else M.; Iglesias, Ari; Reguero, Marcelo Alfredo; Mörs, Thomas; Notonuphar antarctica, an extinct water lily (Nymphaeales) from the Eocene of Antarctica; Springer Wien; Plant Systematics and Evolution; 303; 7; 6-2017; 969-980 0378-2697 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.1007/s00606-017-1422-y |
container_title |
Plant Systematics and Evolution |
container_volume |
303 |
container_issue |
7 |
container_start_page |
969 |
op_container_end_page |
980 |
_version_ |
1779310154909483008 |