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 ~ | |
| 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 |  Brazil |
| 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
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
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.
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