Three new taxa for the Miocene Xyloflora of the San José Formation, Tucumán, Argentina
This paper describes two new genera and three new species of fossil wood assigned to dicotyledonous angiosperms, from the locality of Tiu Punco, where the San José Formation (middle Miocene) outcrops in the Santa María Valley, Tucumán Province, Argentina. The samples, collected from fluvial-lacustri...
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| Autores principales: | , , |
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Facultad de Ciencias Exactas y Naturales y Agrimensura
2026
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| Acceso en línea: | https://revistas.unne.edu.ar/index.php/fce/article/view/8844 |
| Aporte de: |
| Sumario: | This paper describes two new genera and three new species of fossil wood assigned to dicotyledonous angiosperms, from the locality of Tiu Punco, where the San José Formation (middle Miocene) outcrops in the Santa María Valley, Tucumán Province, Argentina. The samples, collected from fluvial-lacustrine levels, were anatomically analysed and are related to the Fabaceae, Bignoniaceae and Combretaceae. These findings provide key evidence regarding the floristic composition and ecological conditions of Miocene ecosystems in north-western Argentina. Their palaeoenvironmental implications and relevance to the Santa María Group are discussed, highlighting the continuity and diversity of the vegetation cover in this geological sequence. This study contributes to our understanding of the eco-anatomical evolution of Neogene vegetation in South America and strengthens the regional palaeobotanical record. |
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