Mackunda Formation
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 ~105.3–99.7 Ma | |
|---|---|
| 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 |  |
| Country | .svg.png){kind=small} |
| Extent | Eromanga Basin |
  Mackunda Formation (Australia) | |
Vertebrate paleofauna
late Early Cretaceous (105 Ma)
| Archosaurs | ||||
|---|---|---|---|---|
| Genus | Species | Presence | 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] |  |
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See also
- List of dinosaur-bearing rock formations
References
- 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.
- "Mackunda Formation". Australian Stratigraphic Units Database, Geoscience Australia. Retrieved 2019-10-06.
- Fletcher, T. L.; Salisbury, S. W. (2010). "New pterosaur fossils from the Early Cretaceous (Albian) of Queensland, Australia". Journal of Vertebrate Paleontology. 30 (6): 1747–1759. doi:10.1080/02724634.2010.521929.
- Bartholomai, A. (1966). "Fossil footprints in Queensland". Australian Natural History. 15 (5): 147–150.
- "Table 19.1," in Weishampel, et al. (2004). Page 416.
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