Newmarracarra Limestone

Newmarracarra Limestone
Stratigraphic range: Late Bajocian ~169–168.3  Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Unit of	Champion Bay Group
Underlies	Kojarena Sandstone
Overlies	Colalura Sandstone, Bringo Shale
Lithology
Primary	Limestone
Other	Sandstone
Location
Coordinates	28°42′S114°48′E / 28.7°S 114.8°E / -28.7; 114.8
Approximate paleocoordinates	40°06′S57°30′E / 40.1°S 57.5°E / -40.1; 57.5
Region	Western Australia
Country	Australia
Extent	Perth Basin
Newmarracarra Limestone (Australia) Show map of Australia Newmarracarra Limestone (Western Australia) Show map of Western Australia

The Newmarracarra Limestone is a Bajocian geologic formation, in Western Australia. It consists of yellow grey sandy or clayey limestone, which occasionally grades into calcareous sandstone. ^[1] Fossils of the Rhynchonellida in the family Wellerellidae, Cirpa fromontae were reported from the formation. ^[2]

References

1. "Newmarracarra Limestone". Australian Stratigraphic Units Database. Geoscience Australia and Australian Stratigraphy Commission. Retrieved 21 August 2018.
2. Craig, 2002

Bibliography

• R. S. Craig. 2002. A new Jurassic Rhynchonellide Brachiopod from the Newmarracarra Limestone, Perth Basin, Western Australia. Records of the Western Australian Museum (20)387-392