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
Approximate paleocoordinates	39.8°S 57.5°E
Region	Western Australia
Country	Australia
Extent	Perth Basin
Colalura Sandstone (Australia) Colalura Sandstone (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

References

1. Long, J.A.; Molnar, R.E. (1998). "A new Jurassic theropod dinosaur from Western Australia" (PDF). Records of the Western Australian Museum. 19: 121–129.
2. "Australian Stratigraphic Units Database, Geoscience Australia".
3. Weishampel, David B.; Dodson, Peter; Osmólska, Halszka, eds. (6 November 2004). The Dinosauria (Second Ed.). University of California Press. pp. 1–861. ISBN 978-0-520-24209-8.
4. Rahut, O.W.M. (2005). "Osteology and Relationships of a New Theropod Dinosaur from the Middle Jurassic of Patagonia" (PDF). Palaeontology. 48 (1): 87–110. doi:10.1111/j.1475-4983.2004.00436.x.