Kallakurichi Formation

The Kallakurichi Formation, alternatively spelled as Kallankurichchi or Kallankurichi Formation, 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.

Fossil content
The following fossils were reported from the formation:
 * Gyrodina
 * Gyrodina globosa
 * Neobulimina sp.
 * Textulariina
 * Textularia nacataensis
 * Rhynchonellata
 * Rectithyris subdepressa
 * Rhynchonella sp.
 * Bivalves
 * Inoceramus bulbus
 * I. tamulicus
 * Pycnodonta vesicularis
 * Ostrea (Alectryonia)
 * Gastropods
 * Anisomyon indicus
 * Echinoids
 * Hemipneustes compressus
 * Fossil eggs
 * Megaloolithus cylindricus