Arcadia Formation, Australia
| Arcadia Formation | |
|---|---|
| Stratigraphic range: Induan-Olenekian ~ | |
| 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 |
| Approximate paleocoordinates | 58°00′S 136°00′E / 58.0°S 136.0°E |
| Region | Queensland |
| Country | Australia |
| Extent | Bowen Basin |
| Type section | |
| Year defined | 1988 |
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.