| Marree Subgroup | |
|---|---|
| Stratigraphic range: Aptian-Albian[1] | |
| Type | Subgroup |
| Unit of | Rolling Downs Group |
| Sub-units | Bellinger Sandstone, Bulldog Shale, Coorikiana Sandstone, Oodnadatta Formation |
| Underlies | Mackunda & Winton Formations |
| Overlies | Parabarana Sandstone, Cadna-owie Formation |
| Lithology | |
| Primary | Siltstone |
| Other | Gravel, conglomerate, shale, clay |
| Location | |
| Coordinates | 30°26′0″S 137°10′0″E / 30.43333°S 137.16667°E |
| Approximate paleocoordinates | 57°06′S 117°18′E / 57.1°S 117.3°E |
| Region | South Australia |
| Country |  Australia |
| Extent | Eromanga Basin |
| Type section | |
| Named for | Marree |
| Named by | Forbes |
| Year defined | 1966 |
  Marree Subgroup (Australia) | |
The Marree Subgroup, previously described as Maree Formation and Marree Formation, is a geological subgroup in the Eromanga Basin of South Australia whose strata date back to the Aptian. The subgroup was first described as a formation by Forbes in 1966.[2][3] Dinosaur remains are among the fossils that have been recovered from the formation.[1]
An opalised plesiosaur specimen of the genus Umoonasaurus has been nicknamed 'Eric' and was described in 1998 by Schroeder.[4] The decapod crab Dioratiopus salebrosus was described in 1980.[5]
- ^ a b Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Australasia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 573-574. ISBN 0-520-24209-2.
- ^ 1988 - Tanh Van Doan - Sedimentology and mineralogy of some Jurassic-Cretaceous sediments of the southern Eromanga Basin - MSc. thesis
- ^ "Marree Subgroup". Australian Stratigraphic Units Database. Geoscience Australia and Australian Stratigraphy Commission. Retrieved 23 August 2018.
- ^ 1999 - Recent developments in Australasian sauropterygian palaeontology (Reptilia: Sauropterygia) - Records of the Western Australian Museum Supplement No. 57: 201-205
- ^ Wooldridge Creek, Alberga River at Fossilworks.org