Colalura Sandstone Explained

Colalura Sandstone
Type:Geological formation
Age:middle Bajocian
~
Period:Bajocian
Prilithology:Sandstone, conglomerate
Otherlithology:Claystone, siltstone, shale
Region:Western Australia
Country: Australia
Coordinates:-28.7°N 114.8°W
Paleocoordinates:-39.8°N 57.5°W
Unitof:Champion Bay Group
Overlies:Moonyoonooka Sandstone
Thickness:Maximum 8.5m (27.9feet)
Extent:Perth Basin

The Colalura Sandstone is a Middle Jurassic geologic formation of the Perth Basin of Western Australia. The formation overlies the Moonyoonooka Sandstone.[1]

Dinosaur remains have been recovered from the formation.[2]

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.[3]

Vertebrates
Genus Species Location Stratigraphic position Material Notes Images
OzraptorO. subotaiiWestern AustraliaThe distal end of a tibiaThe single bone is of a questionable theropod identity.[4]
SauropodaIndeterminateCaudal vertebra

Flora

Petrified wood is very common in the Colalura Sandstone.[3]

See also

Notes and References

  1. Web site: Australian Stratigraphic Units Database, Geoscience Australia.
  2. Book: Weishampel. David B.. Dodson. Peter. Osmólska. Halszka. The Dinosauria (Second Ed.). limited. University of California Press. 1–861. 978-0-520-24209-8. 2004-11-06.
  3. Long. J.A.. Molnar. R.E.. 1998. A new Jurassic theropod dinosaur from Western Australia. Records of the Western Australian Museum. 19. 121–129.
  4. Rahut. O.W.M.. 2005. Osteology and Relationships of a New Theropod Dinosaur from the Middle Jurassic of Patagonia. Palaeontology. 48. 1. 87–110. 10.1111/j.1475-4983.2004.00436.x. free. 2005Palgy..48...87R .