The Champion Bay Group is a stratigraphic group in Australia, it was deposited in the Bajocian stage of the Middle Jurassic.[1] The limestones of the group have provided ammonites.

Champion Bay Group
Stratigraphic range: Bajocian
~170 Ma
TypeGroup
Sub-unitsColalura Sandstone, Newmarracarra Limestone, Kojarena Sandstone, Bringo Shale
UnderliesYarragadee Formation
OverliesChapman Group
Lithology
PrimarySandstone, limestone, shale
Location
Coordinates28°48′S 114°54′E / 28.8°S 114.9°E / -28.8; 114.9
Approximate paleocoordinates40°06′S 57°30′E / 40.1°S 57.5°E / -40.1; 57.5
Region Western Australia
Country Australia
ExtentPerth Basin
Champion Bay Group is located in Australia
Champion Bay Group
Champion Bay Group (Australia)

References

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  1. ^ "Champion Bay Group". Australian Stratigraphic Units Database. Geoscience Australia and Australian Stratigraphy Commission. Retrieved 22 August 2018.

Further reading

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  • R. L. Hall. 1989. Lower Bajocian ammonites (Middle Jurassic; Soninniidae) from the Newmarracarra Limestone, Western Australia. Alcheringa 13:1-20