Areado Group
The Areado Group is a Late Jurassic to Early Cretaceous (Tithonian to Albian; covering approximately 50 million years)[1] geologic group in southeastern Brazil. The group was defined by Cardoso in 1968.[2]
| Areado Group Stratigraphic range: Tithonian-Albian ~150–100 Ma | |
|---|---|
| Type | Group |
| Sub-units | Três Barras, Quiricó & Abaeté Formations |
| Underlies | Mata da Corda Group |
| Overlies | Bambuí Group |
| Lithology | |
| Primary | Sandstone, claystone, conglomerate |
| Location | |
| Coordinates | 18.2°S 45.7°W |
| Approximate paleocoordinates | 17.1°S 12.1°W |
| Region | Minas Gerais |
| Country |  |
| Extent | São Francisco Basin |
| Type section | |
| Named by | Cardoso |
| Year defined | 1968 |
  Areado Group (Brazil) | |
Various fossil theropod tracks have been reported from the aeolic sandstones of the group.[3][4]
Stratigraphy
late Early Cretaceous (105 Ma)
The group contains the following formations from young to old:[5]
- Albian Três Barras Formation - eolian and fluvio-deltaic sandstones
- Aptian Quiricó Formation - lacustrine claystones
- Tithonian-Barremian Abaeté Formation - fluvial conglomerates
gollark: Sentience protocol μ-4.
gollark: Technically it didn't FREEZE it, it consumed all RAM, made it hit the resource limits imposed on it, and thus crashed it, and due to an unrelated bug it failed to restart.
gollark: No, I fixed that.
gollark: HIGHLY useful.
gollark: ++choose 1000 1 2 3 4 5 6 7 8 9 10 11 12
See also
- List of dinosaur-bearing rock formations
References
- Carvalho & Kattah, 1998, p.56
- Carvalho & Kattah, 1998, p.54
- Carvalho & Kattah, 1998, pp.57-61
- Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- Cristóvão Baptista, 2004, p.19
Bibliography
- Cristóvão Baptista, Marcos. 2004. Estratigrafia e evolução geológica da região de Lagoa Formosa (MG) (MSc. thesis), 1–116. Universidade Federal de Minas Gerais. Accessed 2018-09-08.
- Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
- Carvalho, I. d. S., and S. d. S. Kattah. 1998. Dinosaur footprints from Sanfranciscana Basin, Minas Gerais State, Brazil. Anais da Academia Brasileira de Ciências 70. 53-67. Accessed 2020-06-28.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.