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- Title
Guavirá, una nueva localidad con maderas fósiles de la Formación Tacuary (Pérmico Superior) de Paraguay.
- Authors
Leiva Verón, Valeria; Crisafulli, Alexandra; Herbst, Rafael; Filippi, Víctor; Molina, Sonia
- Abstract
The article describes gymnospermous fossil woods from Guavirá, a new locality exposing rocks from the Upper Permian Tacuary Formation in Paraguay. The identified taxa include the conifers Agathoxylon semibiseriatum (Pant & Singh) Leiva Verón & Crisafulli comb. nov. and Kaokoxylon rioclarense ex Mussa in Crisafulli & Leiva Verón (this paper), Polysolenoxylon whitei (Maniero) Kräusel & Dolianiti, Chapmanoxylon jamuriense Pant & Singh, and Baieroxylon cicatricum, Prasad & Lele, a species frequently associated with the Ginkgoales. The discovery of this new assemblage has paleoenvironmental and paleobiogeographic significance because this is the first record of a species with a solenoid pith in the Permian of Paraguay. Thus, it allies the Tacuary Formation to other gondwanic sequences of South America and helps to establish comparisons between their xylotaphofl oras.
- Publication
Gaea: Journal of Geoscience, 2012, Vol 8, Issue 2, p67
- ISSN
1808-5261
- Publication type
Article
- DOI
10.4013/gaea.2012.82.04