Areado Group
| 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°12′S 45°42′W / 18.2°S 45.7°W |
| Approximate paleocoordinates | 17°06′S 12°06′W / 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) | |
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]
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
See also
References
Bibliography
- Cristóvão Baptista, Marcos (2004), Estratigrafia e evolução geológica da região de Lagoa Formosa (MG) (MSc. thesis) (PDF), Universidade Federal de Minas Gerais, pp. 1–116, retrieved 2018-09-08
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21
{{citation}}: CS1 maint: publisher location (link) - Carvalho, I. d. S.; Kattah, S. d. S. (1998), "Dinosaur footprints from Sanfranciscana Basin, Minas Gerais State, Brazil", Anais da Academia Brasileira de Ciências, 70: 53–67, retrieved 2020-06-28