Marree Subgroup
| 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 | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Approximate paleocoordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| 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]
Vertebrate paleofauna
[edit | edit source]Indeterminate theropod remains present in Western Australia.[1]
Dinosaurs
| Dinosaurs of the Marree Subgroup | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
K. kujani[1] |
Geographically present in Western Australia, Australia.[1] |
"Hindlimb."[6] |
||
Sauropterygians
| Sauropterygians of the Marree Subgroup | ||||
|---|---|---|---|---|
| Genus | Species | Presence | Notes | Images |
|
U. demoscyllus[7] |
Bulldog Shale of northern South Australia.[7] |
Known from an opalized skeleton nicknamed 'Eric'. |
 | |
See also
[edit | edit source]References
[edit | edit source]- ^ a b c d e f 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. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
- ^ 1988 - Tanh Van Doan - Sedimentology and mineralogy of some Jurassic-Cretaceous sediments of the southern Eromanga Basin - MSc. thesis
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ 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
- ^ "Table 4.1," in Weishampel, et al. (2004). Page 76.
- ^ a b c Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
Further reading
[edit | edit source]- Schroeder, N. (1998). A review of order Pliosauria, and the description of a new, opalised pliosauroid, from the Early Cretaceous of Coober Pedy, South Australia. M.Sc. thesis, Monash University, Clayton, Victoria
- M. F. Glaessner. 1980. New Cretaceous and Tertiary crabs (Crustacea: Brachyura) from Australia and New Zealand. Transactions of the Royal Society of South Australia 104(6):171-192