Mackunda Formation
| Mackunda Formation | |
|---|---|
| Stratigraphic range: Late Albian ~ | |
| Type | Geological formation |
| Unit of | Rolling Downs Group |
| Underlies | Winton Formation |
| Overlies | Allaru Formation |
| Thickness | Up to 275 m (902 ft) |
| Lithology | |
| Primary | Sandstone, siltstone, shale, marl |
| Location | |
| Coordinates | 22°44′03″S 142°08′30″E / 22.73417°S 142.14167°E |
| Approximate paleocoordinates | 52°54′S 132°00′E / 52.9°S 132.0°E |
| Region | Queensland |
| Country | Australia |
| Extent | Eromanga Basin |
The Mackunda Formation is a geological formation in Queensland, Australia whose strata date back to the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. It consists primarily of interbedded and cross bedded greensand, with variably calcareous shale, with local ferricrete.