First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America

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We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae). The grains are from the late Paleocene to early middle Eocene Ligorio Márquez Formation of Santa Cruz, Patagonia, Argen...

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Autores principales: Macphail, M., Carpenter, R. J., Iglesias, Ari, Wilf, P.
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Naturales
Fósiles
Polen
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85131
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85131
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Fósiles
Polen
spellingShingle Ciencias Naturales
Fósiles
Polen
Macphail, M.
Carpenter, R. J.
Iglesias, Ari
Wilf, P.
First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America
topic_facet Ciencias Naturales
Fósiles
Polen
description We report the first fossil pollen from South America of the lineage that includes the recently discovered, extremely rare Australian Wollemi Pine, Wollemia nobilis (Araucariaceae). The grains are from the late Paleocene to early middle Eocene Ligorio Márquez Formation of Santa Cruz, Patagonia, Argentina, and are assigned to Dilwynites, the fossil pollen type that closely resembles the pollen of modern Wollemia and some species of its Australasian sister genus, Agathis. Dilwynites was formerly known only from Australia, New Zealand, and East Antarctica. The Patagonian Dilwynites occurs with several taxa of Podocarpaceae and a diverse range of cryptogams and angiosperms, but not Nothofagus. The fossils greatly extend the known geographic range of Dilwynites and provide important new evidence for the Antarctic region as an early Paleogene portal for biotic interchange between Australasia and South America.
format Articulo
Articulo
author Macphail, M.
Carpenter, R. J.
Iglesias, Ari
Wilf, P.
author_facet Macphail, M.
Carpenter, R. J.
Iglesias, Ari
Wilf, P.
author_sort Macphail, M.
title First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America
title_short First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America
title_full First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America
title_fullStr First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America
title_full_unstemmed First Evidence for Wollemi Pine-type Pollen (Dilwynites: Araucariaceae) in South America
title_sort first evidence for wollemi pine-type pollen (dilwynites: araucariaceae) in south america
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/85131
work_keys_str_mv AT macphailm firstevidenceforwollemipinetypepollendilwynitesaraucariaceaeinsouthamerica
AT carpenterrj firstevidenceforwollemipinetypepollendilwynitesaraucariaceaeinsouthamerica
AT iglesiasari firstevidenceforwollemipinetypepollendilwynitesaraucariaceaeinsouthamerica
AT wilfp firstevidenceforwollemipinetypepollendilwynitesaraucariaceaeinsouthamerica
bdutipo_str Repositorios
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