Wallumbilla Formation

Wallumbilla Formation
Stratigraphic range: Aptian-Albian, ~125–101 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Rolling Downs Group
Sub-units	Trimble Member, Ranmoor Member, Jones Valley Member, Doncaster Member, Coreena Member
Underlies	Toolebuc & Griman Creek Formations
Overlies	Cadna-Owie & Bungil Formations
Thickness	600 m (2,000 ft)
Lithology
Primary	Mudstone, siltstone
Other	Sandstone, limestone
Location
Coordinates	20°48′S 143°42′E / 20.8°S 143.7°E / -20.8; 143.7
Approximate paleocoordinates	60°12′S 124°24′E / 60.2°S 124.4°E / -60.2; 124.4
Region	New South Wales  Northern Territory  Queensland  South Australia
Country	Australia
Extent	Eromanga Basin
Wallumbilla Formation (Australia)

The Wallumbilla Formation is an Aptian geologic formation found in Australia. Plesiosaur and theropod remains are among the fossils that have been recovered from its strata.