DOAJ Open Access 2021

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

Juan M. Robledo Silvina A. Contreras Johanna S. Baez Claudia I. Galli

Abstrak

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.

Topik & Kata Kunci

Fossil man. Human paleontology Paleontology

Penulis (4)

Juan M. Robledo

Silvina A. Contreras

Johanna S. Baez

Claudia I. Galli

Format Sitasi

APA MLA BibTeX

Robledo, J.M., Contreras, S.A., Baez, J.S., Galli, C.I. (2021). First Miocene megafossil of arrowhead, alismataceous plant Sagittaria, from South America. https://doi.org/10.4202/app.00835.2020

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Informasi Jurnal

Tahun Terbit: 2021
Sumber Database: DOAJ
DOI: 10.4202/app.00835.2020
Akses: Open Access ✓