Mari Mari Group | |
---|---|
Stratigraphic range:
Eifelian ~ | |
Type | Geological group |
Lithology | |
Primary | Shale |
Other | Sandstone |
Location | |
Coordinates | 6°00′S 70°00′W / 6.0°S 70.0°W |
Approximate paleocoordinates | 59°54′S 61°30′W / 59.9°S 61.5°W |
Region | Amazonas |
Country | Brazil |
Extent | Amazon Basin |
Type section | |
Named for | Marimari River |
The Mari Mari Group is an Eifelian to Frasnian geologic group of the Amazon Basin in the state of Amazonas of northwestern Brazil. The group comprises shales and sandstones. [1]
The formation has provided fossils of Tentaculites sp., foraminifera and ostracods. [1] [2]