Trichinopoly Group
Geological formation in India
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The Trichinopoly Group is a geological formation in India whose strata date back to the Late Cretaceous. It lies between the Ootatoor and Ariyalur Groups. It is broad in its southern extremity but thins as it gradually proceeds northwards as it ultimately meets the Ariyalur Group.[1] Dinosaur remains are among the fossils that have been recovered from the formation.[2]
| Trichinopoly Group | |
|---|---|
| Stratigraphic range: Turonian-Santonian ~ | |
| Type | Geological formation |
| Sub-units | Anaipadi Formation |
| Underlies | Ariyalur Group |
| Overlies | Ootatoor Group |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Coordinates | 11.1°N 78.9°E |
| Approximate paleocoordinates | 44.8°S 45.8°E |
| Region | Tamil Nadu and Kerala |
| Country | India |
  Trichinopoly Group (India) | |
Paleobiota
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Dinosaurs
- Ornithischians
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Dravidosaurus[3] | D. blanfordi | Ariyalur | Anaipadi formation | Fragmentary Skull, tooth, sacrum, ilium, ischium, armor plate and dermal spine of an adult. | A (Possible) Stegosaur. | |
| ?Iguanodon[4] | sp. | Ootatoor | "Unidentified remains of a Gigantic Saurian presumed to be an Ornithopod" | A fragmentary Ornithopod described as an Iguanodon. |