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Ottakovil formation

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Geological formation in Tamil Nadu, India
Ottakovil formation
Stratigraphic range: Middle Maastrichtian
~69.72–66.65 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
TypeGeological formation
Unit ofAriyalur Group
UnderliesKallamedu Formation
OverliesKallakurichi Formation
Location
LocationOttakovil
Ottakovil formation is located in IndiaOttakovil formationOttakovil formation (India)Show map of IndiaOttakovil formation is located in Tamil NaduOttakovil formationOttakovil formation (Tamil Nadu)Show map of Tamil Nadu

The Ottakovil formation (Also spelled Ottakoil) is a geological formation in the state of Tamil Nadu, India.

Description

The formation was a shallow marine environment with fossils of Echinoids, Nautilus, Ammonites, Alectronia as well as calcareous nannoplankton.

Fossil Content

Fossils of Echinoids, Nautilus, Ammonites, Alectronia as well as calcareous nannoplankton have been reported from the formation as well.

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.
Ichnofossils from the Ottakovil formation
Genus Species Material Notes Member
Thalassinoides T.sp An ichnofossil made by decapod crustacens, or fish
Ophiomorpha O.sp

References

  1. ^ "Ottakovil Formation". indplex.geolex.org. Retrieved 2024-12-18.
  2. ^ Rai, Jyotsana; Ramkumar, Mu.; Sugantha, T. (2012-12-26), "Calcareous Nannofossils from the Ottakoil Formation, Cauvery Basin, South India: Implications on Age and Late Cretaceous Environmental Conditions", On a Sustainable Future of the Earth's Natural Resources, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 109–122, ISBN 978-3-642-32916-6, retrieved 2024-12-19
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