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]

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Ornithischian
Ornithischians from the Kallakurichi Formation
Genus Species Material Notes
Stegosauridae[3] indet A Stegosaurid.
Sauropods
Sauropods from the Kallakurichi Formation
Genus Species Material Notes
?Titanosaurus[3] T. indicus A titanosaurian sauropod.
Megaloolithus[4] M. cylindricus Fossilised Eggs A Sauropod Oogenus.
Theropods
Theropods from the Kallakurichi Formation
Genus Species Material Notes
Theropoda[3] indet A Theropod.

Molluscas

Molluscas from the Kallakurichi Formation
Genus Species Material Notes
Inoceramus[5] I. bulbus A Clam.
I. tamulicus
Pycnodonta[5] P. vesicularis A Clam.
Ostrea (Alectryonia)[5] sp. A Clam.
Anisomyon[5] A. indicus A snail.
Brachiopods from the Kallakurichi formation
Genus Species Material Notes Member
Gyrodina G. globosa[5]
Neobulimina N. sp.[5]
Foraminiferans from the Kallakurichi formation
Genus Species Material Notes Member
Textulariina T. nacataensis[5]
Rhynchonellatans from the Kallakurichi formation
Genus Species Material Notes Member
Rectithyris R. subdepressa[5]
Rhynchonella R. sp.[5]
Sea Urchins from the Kallakurichi formation
Genus Species Material Notes Member
Hemipneustes H. compressus[6]

See also

References

  1. ^ a b Kallankurichchi Formation at Fossilworks.org
  2. ^ Weishampel et al., 2004, pp.593-600
  3. ^ a b c Weishampel, et al. (2004). "The Dinosauria. Second Edition." Pp 680.
  4. ^ Kohring et al., 1996
  5. ^ a b c d e f g h i Ayyasami, 1989
  6. ^ Aziz & Badve, 1990

Bibliography

Allikas: https://en.wikipedia.org/wiki/Kallakurichi_Formation
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