Estancia El Verano - Meseta Baqueró: Aptian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Polypodiopsida
- Gleicheniaceae
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Gleicheniaceae informal sp.
Presl
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| gen. et sp. nov. | ||||||||||
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Equisetopsida
- Araucariaceae
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Agathoxylon informal sp.
Hartig 1848
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| sp. nov. | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Santa Cruz |
| Coordinates: | 48.6° South, 69.1° West (view map) | ||
| Paleocoordinates: | 49.5° South, 35.3° West | ||
| Basis of coordinate: | stated in text |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Aptian | 10 m.y. bin: | Cretaceous 3 |
| Key time interval: | Aptian | ||
| Age range of interval: | 121.40000 - 113.00000 m.y. ago |
Stratigraphy
| Geological group: | Baqueró | Formation: | Punta del Barco |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | lithified sandstone |
| Secondary lithology: | lithified siltstone |
| Lithology description: Cladera 2002. This unit consists of volcaniclastic deposits, mainly epiclastic (in basal and middle levels) and pyroclastic (at higher levels), whose holestratotipo is located in the eastern sector of the Plateau Baqueró, where reaches 110 meters of power. | |
| Environment: | fluvial indet. |
| Geology comments: Paleoenvironment is interpreted the existence of rivers and streams with braided design, which were covered by ash product of increasing volcanic activity. Subsequently, we developed a meandering system, low sinuosity and important cyclical, with periodic interruptions ash rain. | |
Taphonomy
| Modes of preservation: | mold/impression,soft parts,original cellulose |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | chemical,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Museum repositories: Museum Padre Jesús Molina | |
Metadata
| Database number: | 151297 | ||
| Authorizer: | C. Jaramillo | Enterer: | J. Moreno | Research group: | paleobotany |
| Created: | 2013-09-26 01:41:16 | Last modified: | 2013-09-25 10:41:16 |
| Access level: | authorizer only | Released: | 2016-09-26 01:41:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 48265. | E. I. Vera. 2010. Estudios anatómicos en paleofloras del Aptiano de Antártida y Patagonia, y su comparación. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales 294 [C. Jaramillo/J. Moreno] |