Kallamedu Formation
Geologic formation in India / From Wikipedia, the free encyclopedia
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]
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Quick Facts Type, Underlies ...
Kallamedu Formation | |
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Stratigraphic range: Maastrichtian ~70.6–65.5 Ma | |
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 | 11.6962°N 79.4127°E / 11.6962; 79.4127 |
Country | ![]() |
Extent | Kallamedu |
Type section | |
Named for | Kallamedu village |
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