Mackunda Formation
Geological formation in Queensland, Australia
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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.[1] It consists primarily of interbedded and cross bedded greensand, with variably calcareous shale, with local ferricrete.[2]
| 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 |
| Approximate paleocoordinates | 52.9°S 132.0°E |
| Region | Queensland |
| Country | Australia |
| Extent | Eromanga Basin |
  Mackunda Formation (Australia) | |
Vertebrate paleofauna
| Archosaurs | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Materials | Notes | Images |
| Ctenochasmatoidea[3] | Indeterminate | Queensland, Australia.[3] | |||
| Iguanodontidae[4] | Indeterminate | Queensland, Australia.[4] | |||
| Muttaburrasaurus[1] | M. langdoni | Queensland, Australia.[1] | "Skull and postcrania, fragmentary skeleton."[5] | An iguanodontian hadrosaur. |  |