Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia
During the early Eocene, Patagonia had highly diverse floras that are primarily known from compression and pollen fossils. Fossil wood studies from this epoch are scarce in the region and largely absent from the Laguna del Hunco flora, which has a highly diverse and excellently preserved compression...
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Language: | English |
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2020
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Online Access: | https://doi.org/10.3897/phytokeys.156.54175 https://phytokeys.pensoft.net/article/54175/ |
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ftpensoft:10.3897/phytokeys.156.54175 2023-05-15T14:05:14+02:00 Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia Pujana,Roberto Wilf,Peter Gandolfo,Maria 2020 text/html https://doi.org/10.3897/phytokeys.156.54175 https://phytokeys.pensoft.net/article/54175/ en eng Pensoft Publishers info:eu-repo/semantics/altIdentifier/eissn/1314-2003 info:eu-repo/semantics/altIdentifier/pissn/1314-2011 info:eu-repo/semantics/openAccess PhytoKeys 156: 81-102 fossil forests Huitrera Formation Paleogene Podocarpaceae South America wood anatomy Research Article 2020 ftpensoft https://doi.org/10.3897/phytokeys.156.54175 2022-03-01T12:43:58Z During the early Eocene, Patagonia had highly diverse floras that are primarily known from compression and pollen fossils. Fossil wood studies from this epoch are scarce in the region and largely absent from the Laguna del Hunco flora, which has a highly diverse and excellently preserved compression assemblage. A collection of 26 conifer woods from the Laguna del Hunco fossil-lake beds (early Eocene, ca. 52 Ma) from central-western Patagonia was studied, of which 12 could be identified to genus. The dominant species is Phyllocladoxylon antarcticum, which has affinity with early-diverging Podocarpaceae such as Phyllocladus and Prumnnopitys. A single specimen of Protophyllocladoxylon francisiae probably represents an extinct group of Podocarpaceae. In addition, two taxonomic units of cf. Cupressinoxylon with putative affinity to Podocarpaceae were found. Diverse Podocarpaceae taxa consistent with the affinities of these woods were previously reported from vegetative and reproductive macrofossils as well as pollen grains from the same source unit. Some of the woods have galleries filled with frass. Distinct growth ring boundaries indicate seasonality, inferred to represent seasonal light availability. Growth ring widths suggest that the woods came from mature trees, whereas the widths and types of some rings denote near-uniform temperature and water availability conditions. Article in Journal/Newspaper Antarc* Pensoft Publishers Fossil Lake ENVELOPE(-128.902,-128.902,66.276,66.276) Patagonia PhytoKeys 156 81 102 |
institution |
Open Polar |
collection |
Pensoft Publishers |
op_collection_id |
ftpensoft |
language |
English |
topic |
fossil forests Huitrera Formation Paleogene Podocarpaceae South America wood anatomy |
spellingShingle |
fossil forests Huitrera Formation Paleogene Podocarpaceae South America wood anatomy Pujana,Roberto Wilf,Peter Gandolfo,Maria Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia |
topic_facet |
fossil forests Huitrera Formation Paleogene Podocarpaceae South America wood anatomy |
description |
During the early Eocene, Patagonia had highly diverse floras that are primarily known from compression and pollen fossils. Fossil wood studies from this epoch are scarce in the region and largely absent from the Laguna del Hunco flora, which has a highly diverse and excellently preserved compression assemblage. A collection of 26 conifer woods from the Laguna del Hunco fossil-lake beds (early Eocene, ca. 52 Ma) from central-western Patagonia was studied, of which 12 could be identified to genus. The dominant species is Phyllocladoxylon antarcticum, which has affinity with early-diverging Podocarpaceae such as Phyllocladus and Prumnnopitys. A single specimen of Protophyllocladoxylon francisiae probably represents an extinct group of Podocarpaceae. In addition, two taxonomic units of cf. Cupressinoxylon with putative affinity to Podocarpaceae were found. Diverse Podocarpaceae taxa consistent with the affinities of these woods were previously reported from vegetative and reproductive macrofossils as well as pollen grains from the same source unit. Some of the woods have galleries filled with frass. Distinct growth ring boundaries indicate seasonality, inferred to represent seasonal light availability. Growth ring widths suggest that the woods came from mature trees, whereas the widths and types of some rings denote near-uniform temperature and water availability conditions. |
format |
Article in Journal/Newspaper |
author |
Pujana,Roberto Wilf,Peter Gandolfo,Maria |
author_facet |
Pujana,Roberto Wilf,Peter Gandolfo,Maria |
author_sort |
Pujana,Roberto |
title |
Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia |
title_short |
Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia |
title_full |
Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia |
title_fullStr |
Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia |
title_full_unstemmed |
Conifer wood assemblage dominated by Podocarpaceae, early Eocene of Laguna del Hunco, central Argentinean Patagonia |
title_sort |
conifer wood assemblage dominated by podocarpaceae, early eocene of laguna del hunco, central argentinean patagonia |
publisher |
Pensoft Publishers |
publishDate |
2020 |
url |
https://doi.org/10.3897/phytokeys.156.54175 https://phytokeys.pensoft.net/article/54175/ |
long_lat |
ENVELOPE(-128.902,-128.902,66.276,66.276) |
geographic |
Fossil Lake Patagonia |
geographic_facet |
Fossil Lake Patagonia |
genre |
Antarc* |
genre_facet |
Antarc* |
op_source |
PhytoKeys 156: 81-102 |
op_relation |
info:eu-repo/semantics/altIdentifier/eissn/1314-2003 info:eu-repo/semantics/altIdentifier/pissn/1314-2011 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3897/phytokeys.156.54175 |
container_title |
PhytoKeys |
container_volume |
156 |
container_start_page |
81 |
op_container_end_page |
102 |
_version_ |
1766276975137128448 |