 | This provides insufficient context for those unfamiliar with the subject. (December 2020) |
| Kallamedu Formation | |
|---|---|
| Stratigraphic range: Maastrichtian ~ | |
| Type | Geological formation |
| Underlies | Niniyur Formation |
| Overlies | Archean Basement |
| Thickness | Variable, typically 5–5,000 km (3.1–3,106.9 mi) |
| Lithology | |
| Primary | Claystone, siltstone limestone |
| Other | Conglomerate |
| Location | |
| Coordinates | 11°41′46″N 79°24′46″E / 11.6962°N 79.4127°E |
| Country |  India |
| Extent | Kallamedu |
| Type section | |
| Named for | Kallamedu village |
The Kallamedu Formation is a Late Cretaceous (Maastrichtian) geologic formation located in the Ariyalur district of Tamil Nadu, India that forms part of the Ariyalur Group.[1] It dates to the Maastrichtian of the Late Cretaceous. Dinosaur remains and petrified wood samples are among the known fossils recovered from this formation.[2]
- ^ Memoirs of the Geological Survey of India. Oxford University. 1865. pp. 107–140.
- ^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 593–600. ISBN 0-520-24209-2.