Colalura Sandstone

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°42′S114°48′E / 28.7°S 114.8°E / -28.7; 114.8
Approximate paleocoordinates	39°48′S57°30′E / 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

The Colalura Sandstone is a Middle Jurassic geologic formation of the Perth Basin of Western Australia. The formation overlies the Moonyoonooka Sandstone. ^[2]

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. Bibcode:2005Palgy..48...87R. doi: 10.1111/j.1475-4983.2004.00436.x .