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Middle Jurassic geologic formation in Australia From Wikipedia, the free encyclopedia
The Colalura Sandstone is a Middle Jurassic geologic formation of the Perth Basin of Western Australia. The formation overlies the Moonyoonooka Sandstone.[2]
Colalura Sandstone | |
---|---|
Stratigraphic range: middle Bajocian ~ | |
Type | Geological formation |
Unit of | Champion Bay Group |
Underlies | Bringo Shale, Newmarracarra Limestone[1] |
Overlies | Moonyoonooka Sandstone |
Thickness | Maximum 8.5 m (28 ft) |
Lithology | |
Primary | Sandstone, conglomerate |
Other | Claystone, siltstone, shale |
Location | |
Coordinates | 28.7°S 114.8°E |
Approximate paleocoordinates | 39.8°S 57.5°E |
Region | Western Australia |
Country | Australia |
Extent | Perth Basin |
Few remains of the sandstone have been assigned to a genus. Unassigned remains include rare reptilian bones such as an isolated plesiosaur vertebra and paddle.[1]
Petrified wood is very common in the Colalura Sandstone.[1]
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