Earth:Kallakurichi Formation
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Short description: Maastrichtian geologic formation in India
| Kallakurichi Formation Stratigraphic range: Maastrichtian ~70–66 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Ariyalur Group |
| Lithology | |
| Primary | Limestone |
| Location | |
| Coordinates | [ ⚑ ] : 11°06′N 79°06′E / 11.1°N 79.1°E |
| Paleocoordinates | [ ⚑ ] 35°18′S 56°24′E / 35.3°S 56.4°E |
| Region | Tamil Nadu |
| Country |  India |
| Type section | |
| Named for | Kallakurichi |
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The Kallakurichi Formation, alternatively spelled as Kallankurichchi or Kallankurichi Formation,[1] is a geological formation of the Ariyalur Group in Tamil Nadu, southern India whose strata date back to the Maastrichtian stage of the Late Cretaceous. Dinosaur eggs of Megaloolithus cylindricus are among the fossils that have been recovered from the sandy limestones of the formation.[2]
Fossil content
The following fossils were reported from the formation:[1]
- Gyrodina
- Textulariina
- Rhynchonellata
- Rectithyris subdepressa[3]
- Rhynchonella sp.[3]
- Bivalves
- Inoceramus bulbus[3]
- I. tamulicus[3]
- Pycnodonta vesicularis[3]
- Ostrea (Alectryonia)[3]
- Gastropods
- Anisomyon indicus[3]
- Echinoids
- Fossil eggs
See also
- List of dinosaur-bearing rock formations
- List of stratigraphic units with dinosaur trace fossils
- Dinosaur eggs
- List of stratigraphic units with dinosaur trace fossils
References
Bibliography
- Weishampel, David B.; Peter Dodson, and Halszka (eds.) Osmólska. 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN:0-520-24209-2
- Kohring, R.; K. Bandel; D. Kortum, and S. Parthasararthy. 1996. Shell structure of a dinosaur egg from the Maastrichtian of Ariyalur (southern India). Neues Jahrbuch für Geologie und Paläontologie - Monatshefte 1996. 48–64.
- Aziz, S.A., and R. M. Badve. 1990. Occurrence of Hemipneustes Agassiz (Echinoid) from Tiruchirapalli Cretaceous, Tamil Nadu, India. Journal of the Geological Society of India 36. 326-330.
- Ayyasami, K. 1989. Genus Anisomyon (Gastropoda) from the Cretaceous of Southern India. Journal of the Geological Society of India 33. 361–364.
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