Evergreen Formation
The Evergreen Formation is a Pliensbachian to Toarcian geologic formation of the Surat Basin in New South Wales and Queensland, eastern Australia. It is Upper Pliensbachian to Toarcian in age.[1][2]
Evergreen Formation Stratigraphic range: Upper Pliensbachian-Toarcian ~185–175 Ma | |
---|---|
Type | Geological formation |
Unit of | Bundamba Group |
Sub-units | Boxvale Sandstone & Westgrove Ironstone Members |
Underlies | Hutton Sandstone |
Overlies | Precipice Sandstone |
Thickness | Up to 255 m (837 ft) |
Lithology | |
Primary | Sandstone, siltstone, mudstone |
Other | Coal, ironstone |
Location | |
Coordinates | 25.8°S 150.3°E |
Approximate paleocoordinates | 61.7°S 90.0°E |
Region | |
Country | |
Extent | Surat Basin |
Evergreen Formation (Australia) |
Fossil content
The temnospondyl Siderops, Decorotergum warrenae and indeterminate plesiosaur fossils are known from the formation, deposited in a lacustrine environment.[3]
gollark: ```python>>> for x in cast(id(False), POINTER(c_byte * sys.getsizeof(False))).contents: print(x, end=" ")-86 0 0 0 0 0 0 0 -32 -63 44 -117 69 127 0 0 0 0 0 0 0 0 0 0```Fascinating.
gollark: I assume it's already been used there, or at least a similar thing.
gollark: ++delete twitter (EMERGENCY, 2 + 2 arguments)
gollark: WHAT IS WRONG WITH TWITTER
gollark: There are Twitter arguments about 2 + 2?
References
- "Australian Government- Geoscience Australia Australian Stratigraphic Units Database". ga.gov.au. Geoscience Australia. Retrieved 19 January 2015.
- Todd, Christopher N.; Roberts, Eric M.; Knutsen, Espen M.; Rozefelds, Andrew C.; Huang, Hui-Qing; Spandler, Carl (December 2019). "Refined age and geological context of two of Australia's most important Jurassic vertebrate taxa (Rhoetosaurus brownei and Siderops kehli), Queensland". Gondwana Research. 76: 19–25. doi:10.1016/j.gr.2019.05.008.
- Kolane at Fossilworks.org
Further reading
- A. Warren. 1977. Jurassic labyrinthodont. Nature 265:436-437
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.