El Tranquilo Group

El Tranquilo Group
Stratigraphic range: Late Triassic
~228–200 Ma
Type Geologic group
Sub-units Laguna Colorada Formation
Lithology
Primary Sandstone
Location
Coordinates 48°06′S 69°30′W / 48.1°S 69.5°W / -48.1; -69.5Coordinates: 48°06′S 69°30′W / 48.1°S 69.5°W / -48.1; -69.5
Approximate paleocoordinates 57°00′S 26°12′W / 57.0°S 26.2°W / -57.0; -26.2
Region Santa Cruz Province
Country  Argentina
Extent Austral Basin

The El Tranquilo Group is a geologic group dating to roughly between 228 and 200 million years ago and covering part of the Late Triassic. The El Tranquilo Group is found in the Austral Basin of Santa Cruz Province of Argentina. Fossil flora and purported fossils of the prosauropod dinosaur Mussaurus have been recovered from the El Tranquilo Sandstone.[1] In older publications, the group was defined as a formation.[2]

References

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