First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America

The first pre-Quaternary representative of Alismataceae from South America is reported based on achenes of Sagittaria montevidensis from the Palo Pintado Formation (upper Miocene) in the south of Salta Province, Argentina. Achenes are laterally compressed, have a lateral beak and a single recurved s...

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Autores principales: Robledo, Juan Manuel, Contreras, Silvina Andrea, Báez, Johanna Soledad, Galli, Claudia Inés
Formato: Artículo
Lenguaje:Inglés
Publicado: Polish Academy of Sciences. Institute of Paleobiology 2025
Materias:
Alismataceae
Sagittaria
Achene
Aquatic plants
Fossil fruits
Neogene
Argentina
Acceso en línea:http://repositorio.unne.edu.ar/handle/123456789/56522
Aporte de:
RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE) de Universidad Nacional del Nordeste
id I48-R184-123456789-56522
record_format dspace
spelling I48-R184-123456789-565222025-04-25T13:36:00Z First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America Robledo, Juan Manuel Contreras, Silvina Andrea Báez, Johanna Soledad Galli, Claudia Inés Alismataceae Sagittaria Achene Aquatic plants Fossil fruits Neogene Argentina The first pre-Quaternary representative of Alismataceae from South America is reported based on achenes of Sagittaria montevidensis from the Palo Pintado Formation (upper Miocene) in the south of Salta Province, Argentina. Achenes are laterally compressed, have a lateral beak and a single recurved seed inside them. The fruits were found both in the base (10 Ma) and the top of the formation (~5 Ma), suggesting similar environmental conditions during this time period. A cursory review of the Alismataceae family in the fossil record, with a special interest in those South American reports is given. During the Oligocene–Miocene Sagittaria may have arrived from tropical Africa to South America and thence to North America. 2025-04-16T14:01:15Z 2025-04-16T14:01:15Z 2021 Artículo Robledo, Juan Manuel, et al., 2021. First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America. Acta Palaeontologica Polonica. Varsovia: Polish Academy of Sciences. Institute of Paleobiology, vol. 66, no. 3, p. 111-122. E-ISSN 1732-2421. 0567-7920 http://repositorio.unne.edu.ar/handle/123456789/56522 eng https://doi.org/10.4202/app.00835.2020 openAccess http://creativecommons.org/licenses/by-nc-nd/2.5/ar/ application/pdf p. 111-122 application/pdf Polish Academy of Sciences. Institute of Paleobiology Acta Palaeontologica Polonica, 2021, vol. 66, no. 3, p. 111-122.
institution Universidad Nacional del Nordeste
institution_str I-48
repository_str R-184
collection RIUNNE - Repositorio Institucional de la Universidad Nacional del Nordeste (UNNE)
language Inglés
topic Alismataceae
Sagittaria
Achene
Aquatic plants
Fossil fruits
Neogene
Argentina
spellingShingle Alismataceae
Sagittaria
Achene
Aquatic plants
Fossil fruits
Neogene
Argentina
Robledo, Juan Manuel
Contreras, Silvina Andrea
Báez, Johanna Soledad
Galli, Claudia Inés
First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America
topic_facet Alismataceae
Sagittaria
Achene
Aquatic plants
Fossil fruits
Neogene
Argentina
description The first pre-Quaternary representative of Alismataceae from South America is reported based on achenes of Sagittaria montevidensis from the Palo Pintado Formation (upper Miocene) in the south of Salta Province, Argentina. Achenes are laterally compressed, have a lateral beak and a single recurved seed inside them. The fruits were found both in the base (10 Ma) and the top of the formation (~5 Ma), suggesting similar environmental conditions during this time period. A cursory review of the Alismataceae family in the fossil record, with a special interest in those South American reports is given. During the Oligocene–Miocene Sagittaria may have arrived from tropical Africa to South America and thence to North America.
format Artículo
author Robledo, Juan Manuel
Contreras, Silvina Andrea
Báez, Johanna Soledad
Galli, Claudia Inés
author_facet Robledo, Juan Manuel
Contreras, Silvina Andrea
Báez, Johanna Soledad
Galli, Claudia Inés
author_sort Robledo, Juan Manuel
title First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America
title_short First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America
title_full First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America
title_fullStr First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America
title_full_unstemmed First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America
title_sort first miocene megafossil of arrowhead, alismataceous plant sagittaria, from south america
publisher Polish Academy of Sciences. Institute of Paleobiology
publishDate 2025
url http://repositorio.unne.edu.ar/handle/123456789/56522
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AT baezjohannasoledad firstmiocenemegafossilofarrowheadalismataceousplantsagittariafromsouthamerica
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