Champion Bay Group
Stratigraphic range: Bajocian ~170  Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Group
Sub-units	Colalura Sandstone, Newmarracarra Limestone, Kojarena Sandstone, Bringo Shale
Underlies	Yarragadee Formation
Overlies	Chapman Group
Lithology
Primary	Sandstone, limestone, shale
Location
Coordinates	28°48′S114°54′E / 28.8°S 114.9°E / -28.8; 114.9
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
Champion Bay Group (Australia)

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.

References

Further reading

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