Arcadia Formation, Australia

Arcadia Formation
Stratigraphic range: Induan-Olenekian ~251–247 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Unit of	Rewan Group
Underlies	Brumby Sandstone Member
Overlies	unconformity with Glenidal Formation conformity Sagittarius Sandstone
Thickness	Up to 500 m (1,600 ft)
Lithology
Primary	Red mudstone, siltstone, fine-grained sandstone
Location
Coordinates	24°48′S 148°00′E / 24.8°S 148.0°E / -24.8; 148.0
Approximate paleocoordinates	58°00′S 136°00′E / 58.0°S 136.0°E / -58.0; 136.0
Region	Queensland
Country	Australia
Extent	Bowen Basin
Type section
Year defined	1988
Arcadia Formation, Australia (Australia) Show map of Australia Arcadia Formation, Australia (Queensland) Show map of Queensland

The Arcadia Formation is a geological formation located within central-eastern Queensland, Australia, which has been aged between the Induan–Olenekian epoch of the Early-Triassic period. It is most well known for its abundance of Early-Triassic aged fossils, most notably its high diversity of amphibians.^[1][2]