Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina
The Puntudo Chico Formation is a continental sequence overlying the Chubut Group at the central-East of the Cañadón Asfalto Basin in Patagonia (Chubut Province, Argentina). The age of this unit, Campanian–Maastrichtian, makes it comparable with other Patagonian units, such as the Allen (Río Negro Pr...
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2019
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v99_n_p321_Vera http://hdl.handle.net/20.500.12110/paper_01956671_v99_n_p321_Vera |
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paper:paper_01956671_v99_n_p321_Vera2023-06-08T15:20:24Z Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina Agathoxylon Brachyoxylon Kawas Sea Podocarpoxylon Agathoxylon Aves Brachyoxylon Coniferales Coniferophyta Dinosauria Mammalia Petriella Podocarpoxylon The Puntudo Chico Formation is a continental sequence overlying the Chubut Group at the central-East of the Cañadón Asfalto Basin in Patagonia (Chubut Province, Argentina). The age of this unit, Campanian–Maastrichtian, makes it comparable with other Patagonian units, such as the Allen (Río Negro Province) and La Colonia Formation (Chubut Province), well-known by their paleontological content, including plants, mammals, and non-avian dinosaurs. Contrasting, the Puntudo Chico Formation fossil content is almost unknown, and even if fossil woods were reported, detailed studies were lacking. In this contribution, fossil woods collected from the Puntudo Chico Formation are studied, and three different conifer taxa are identified: Podocarpoxylon mazzonii (Petriella) Müller-Stoll & J. Schultze-Motel 1990, Brachyoxylon sp. cf. B. currumilii Bodnar, Escapa, Cúneo & Gnaedinger, 2013, and Agathoxylon antarcticus (Poole et Cantrill) Pujana, Santillana & Marenssi, 2014. This flora seems to be part of a distinctive Late Cretaceous–Danian floristic assemblages that inhabited a warm region located approximately at 38–42°S, that were probably linked and somewhat nearby the Kawas Sea, an inland sea that flooded the Neuquén and Río Colorado basins during the first Atlantic Transgressive Event in Patagonia. © 2019 Elsevier Ltd 2019 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v99_n_p321_Vera http://hdl.handle.net/20.500.12110/paper_01956671_v99_n_p321_Vera |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Agathoxylon Brachyoxylon Kawas Sea Podocarpoxylon Agathoxylon Aves Brachyoxylon Coniferales Coniferophyta Dinosauria Mammalia Petriella Podocarpoxylon |
| spellingShingle |
Agathoxylon Brachyoxylon Kawas Sea Podocarpoxylon Agathoxylon Aves Brachyoxylon Coniferales Coniferophyta Dinosauria Mammalia Petriella Podocarpoxylon Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina |
| topic_facet |
Agathoxylon Brachyoxylon Kawas Sea Podocarpoxylon Agathoxylon Aves Brachyoxylon Coniferales Coniferophyta Dinosauria Mammalia Petriella Podocarpoxylon |
| description |
The Puntudo Chico Formation is a continental sequence overlying the Chubut Group at the central-East of the Cañadón Asfalto Basin in Patagonia (Chubut Province, Argentina). The age of this unit, Campanian–Maastrichtian, makes it comparable with other Patagonian units, such as the Allen (Río Negro Province) and La Colonia Formation (Chubut Province), well-known by their paleontological content, including plants, mammals, and non-avian dinosaurs. Contrasting, the Puntudo Chico Formation fossil content is almost unknown, and even if fossil woods were reported, detailed studies were lacking. In this contribution, fossil woods collected from the Puntudo Chico Formation are studied, and three different conifer taxa are identified: Podocarpoxylon mazzonii (Petriella) Müller-Stoll & J. Schultze-Motel 1990, Brachyoxylon sp. cf. B. currumilii Bodnar, Escapa, Cúneo & Gnaedinger, 2013, and Agathoxylon antarcticus (Poole et Cantrill) Pujana, Santillana & Marenssi, 2014. This flora seems to be part of a distinctive Late Cretaceous–Danian floristic assemblages that inhabited a warm region located approximately at 38–42°S, that were probably linked and somewhat nearby the Kawas Sea, an inland sea that flooded the Neuquén and Río Colorado basins during the first Atlantic Transgressive Event in Patagonia. © 2019 Elsevier Ltd |
| title |
Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina |
| title_short |
Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina |
| title_full |
Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina |
| title_fullStr |
Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina |
| title_full_unstemmed |
Fossil woods with coniferalean affinities from the Upper Cretaceous (Campanian–Maastrichtian) Puntudo Chico Formation, Chubut Province, Argentina |
| title_sort |
fossil woods with coniferalean affinities from the upper cretaceous (campanian–maastrichtian) puntudo chico formation, chubut province, argentina |
| publishDate |
2019 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_01956671_v99_n_p321_Vera http://hdl.handle.net/20.500.12110/paper_01956671_v99_n_p321_Vera |
| _version_ |
1768541559286923264 |