| Yerrapalli Formation | |
|---|---|
| Stratigraphic range: Anisian ~ | |
| Type | Geological formation |
| Underlies | Bhimaram Formation |
| Overlies | Kamthi Formation |
| Thickness | 600 m (2,000 ft) |
| Lithology | |
| Primary | Mudstone, sandstone, caliche |
| Location | |
| Coordinates | 18°54′N 79°42′E / 18.9°N 79.7°E |
| Approximate paleocoordinates | 51°24′S 48°30′E / 51.4°S 48.5°E |
| Region | Andhra Pradesh, Telangana |
| Country |  India |
| Extent | Pranhita–Godavari Basin |
| Type section | |
| Named for | Yerrapalli village |
| Named by | Jain et al. |
| Year defined | 1964 |
  Yerrapalli Formation (India)  Yerrapalli Formation (Telangana) | |
The Yerrapalli Formation is a Triassic rock formation consisting primarily of mudstones that outcrops in the Pranhita–Godavari Basin in southeastern India.[1] The Yerrapalli Formation preserves fossils of freshwater and terrestrial vertebrates as well as trace fossils of invertebrates.[2] The tetrapod fauna includes temnospondyl amphibians, archosauromorph reptiles, and dicynodonts.[3]
- ^ Supriya Sengupta (1970). "Gondwana Sedimentation Around Bheemaram (Bhimaram), Pranhita-Godavari Valley, India". SEPM Journal of Sedimentary Research. 40. doi:10.1306/74D71F0A-2B21-11D7-8648000102C1865D.
- ^ Yerrapalli Formation at Fossilworks.org
- ^ Sues, H.-D.; Fraser, N.C. (2010). "Early and early Middle Triassic in Gondwana". Triassic Life on Land: The Great Transition. New York: Columbia University Press. ISBN 9780231135221.