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 PreꞒ Ꞓ O S D C P T J K Pg N
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 / -52.9; 132.0
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.

See also

• List of dinosaur-bearing rock formations