Mari Mari Group Explained

Mari Mari Group
Type:	Geological group
Period:	Eifelian
Age:	Eifelian ~
Prilithology:	Shale
Otherlithology:	Sandstone
Namedfor:	Marimari River
Region:	Amazonas
Coordinates:	-6°N -70°W
Paleocoordinates:	-59.9°N -61.5°W
Extent:	Amazon Basin

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]

Fossil content

The formation has provided fossils of Tentaculites sp., foraminifera and ostracods.^{[1] [2]}

References

Bibliography

Notes and References

1. http://www.fossilworks.org/cgi-bin/bridge.pl?action=displayStrata&geological_group=Mari%20Mari&group_formation_member=Mari%20Mari Mari Mari Group
2. Melo, 1988