Colalura Sandstone

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 ~169 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
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 / -28.7; 114.8
Approximate paleocoordinates	39.8°S 57.5°E / -39.8; 57.5
Region	Western Australia
Country	Australia
Extent	Perth Basin
Colalura Sandstone (Australia) Show map of Australia Colalura Sandstone (Western Australia) Show map of Western Australia

Dinosaur remains have been recovered from the formation.^[3]

Vertebrate paleofauna

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]

Vertebrates
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Ozraptor	O. subotaii	Western Australia		The distal end of a tibia[1][3]	The single bone is of a questionable theropod identity.[4]
Sauropoda	Indeterminate			Caudal vertebra

Flora

Petrified wood is very common in the Colalura Sandstone.^[1]

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with few dinosaur genera