Estancia Vilán: Late/Upper Jurassic - Early/Lower Cretaceous, Argentina
Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
| Country: | Argentina | State/province: | Chubut |
| Coordinates: | 43.2° South, 69.2° West (view map) | ||
| Paleocoordinates: | 42.7° South, 32.5° West |
Time
| Key time interval: | Late/Upper Jurassic - Early/Lower Cretaceous |
| Age range of interval: | 161.50000 - 100.50000 m.y. ago |
| Age estimate: | 157.5 ± 0.05 Ma (U/Pb) |
Stratigraphy
| Formation: | Cañadón Calcáreo |
Lithology and environment
| Primary lithology: | tuffaceous "siliciclastic" |
| Environment: | terrestrial indet. |
| Geology comments: In this area the fossiliferous
horizon crops out as the uppermost part of a thick sequence of the Cañadon Calcareo Formation. This unit is entirely terrestrial in origin, dominated by siliciclastic fluvial and lake deposits with several intercalated ash beds. | |
Taphonomy
| Modes of preservation: | body,recrystallized,original carbon,original cellulose,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | MEF |
Metadata
| Also known as: | Cañadón Calcáreo Formation (Paleobotany) | ||
| Database number: | 200040 | ||
| Authorizer: | P. Wilf | Enterer: | E. Stiles |
| Modifier: | E. Stiles | Research group: | paleobotany |
| Created: | 2019-02-27 13:14:28 | Last modified: | 2019-02-27 13:47:39 |
| Access level: | the public | Released: | 2019-02-27 13:14:28 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 68027. | I. H. Escapa, N. R. Cuneo, G. Rothwell and R. A. Stockey. 2013. Pararaucaria delfueyoi sp. nov. from the Late Jurassic Cañadón Calcáreo Formation, Chubut, Argentina: insights into the evolution of the Cheirolepidiaceae. International Journal of Plant Sciences 174(3):458-470 [P. Wilf/E. Stiles] |