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	The '''Kallakurichi Formation''', alternatively spelled as '''Kallankurichchi''' or '''Kallankurichi Formation''',<ref name=FWKallankurichchi>[http://fossilworks.org/bridge.pl?action=collectionSearch&geological_group=Ariyalur&formation=Kallankurichchi Kallankurichchi Formation] at [[Fossilworks]].org</ref> is a geological [[Formation (geology)\|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\|Megaloolithus cylindricus]]'' are among the fossils that have been recovered from the sandy [[limestone]]s of the formation.<ref name="cretaceousdistribution">Weishampel et al., 2004, pp.593-600</ref>		The '''Kallakurichi Formation''', alternatively spelled as '''Kallankurichchi''' or '''Kallankurichi Formation''',<ref name=FWKallankurichchi>[http://www.fossilworks.org/cgi-bin/bridge.pl?action=collectionSearch&geological_group=Ariyalur&formation=Kallankurichchi Kallankurichchi Formation] at [[Fossilworks]].org</ref> is a geological [[Formation (geology)\|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\|Megaloolithus cylindricus]]'' are among the fossils that have been recovered from the sandy [[limestone]]s of the formation.<ref name="cretaceousdistribution">Weishampel et al., 2004, pp.593-600</ref>

	== Fossil content ==		== Fossil content ==

->JCW-CleanerBot: /* Bibliography */clean up, replaced: Neues Jahrbuch für Geologie und Paläontologie Monatshefte → Neues Jahrbuch für Geologie und Paläontologie - Monatshefte

2020-10-26T21:15:38Z

Bibliography: clean up, replaced: Neues Jahrbuch für Geologie und Paläontologie Monatshefte → Neues Jahrbuch für Geologie und Paläontologie - Monatshefte

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{{short description|Maastrichtian geologic formation in India}}
{{Use dmy dates|date=July 2019}}
{{Infobox rockunit
| name = Kallakurichi Formation
| image =
| caption =
| type = [[Geological formation]]
| age = [[Maastrichtian]]<br>~{{fossil range|70|66}}
| period = Maastrichtian
| prilithology = [[Limestone]]
| otherlithology =
| namedfor = [[Kallakurichi]]
| namedby =
| region = [[Tamil Nadu]]
| country = {{IND}}
| coordinates = {{coord|11.1|N|79.1|E|display=inline,title}}
| paleocoordinates = {{coord|35.3|S|56.4|E|display=inline}}
| unitof = [[Ariyalur Group]]
| subunits =
| underlies =
| overlies =
| thickness =
| extent =
| area =
| map = {{Location map+ | India#Tamil Nadu
| relief = 1
| width = 250
| float = center
| places =
{{Location map~ | India#Tamil Nadu
| lat_deg = 11.1
| lon_deg = 79.1
| mark = Lightgreen pog.svg
| marksize = 10
}}
}}
| map_caption =
}}
The '''Kallakurichi Formation''', alternatively spelled as '''Kallankurichchi''' or '''Kallankurichi Formation''',<ref name=FWKallankurichchi>[http://fossilworks.org/bridge.pl?action=collectionSearch&geological_group=Ariyalur&formation=Kallankurichchi Kallankurichchi Formation] at [[Fossilworks]].org</ref> is a geological [[Formation (geology)|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|Megaloolithus cylindricus]]'' are among the fossils that have been recovered from the sandy [[limestone]]s of the formation.<ref name="cretaceousdistribution">Weishampel et al., 2004, pp.593-600</ref>

== Fossil content ==
The following fossils were reported from the formation:<ref name=FWKallankurichchi/>
* [[Gyrodina]]
** ''[[Gyrodina globosa]]''<ref name=Ayyasami1989/>
** ''[[Neobulimina|Neobulimina sp.]]''<ref name=Ayyasami1989/>
* [[Textulariina]]
** ''[[Textularia|Textularia nacataensis]]''<ref name=Ayyasami1989/>
* [[Rhynchonellata]]
** ''[[Rectithyris|Rectithyris subdepressa]]''<ref name=Ayyasami1989/>
** ''[[Rhynchonella|Rhynchonella sp.]]''<ref name=Ayyasami1989/>
* [[Bivalve]]s
** ''[[Inoceramus|Inoceramus bulbus]]''<ref name=Ayyasami1989/>
** ''[[Inoceramus|I. tamulicus]]''<ref name=Ayyasami1989/>
** ''[[Pycnodonta|Pycnodonta vesicularis]]''<ref name=Ayyasami1989/>
** ''[[Ostrea (genus)|Ostrea (Alectryonia)]]''<ref name=Ayyasami1989/>
* [[Gastropod]]s
** ''[[Anisomyon|Anisomyon indicus]]''<ref name=Ayyasami1989>Ayyasami, 1989</ref>
* [[Echinoid]]s
** ''[[Hemipneustes|Hemipneustes compressus]]''<ref name=Aziz1990>Aziz & Badve, 1990</ref>
* [[Fossil egg]]s
** ''[[Megaloolithus|Megaloolithus cylindricus]]''<ref name=Kohring1996>Kohring et al., 1996</ref>

== See also ==
* [[List of dinosaur-bearing rock formations]]
** [[List of stratigraphic units with dinosaur trace fossils]]
*** [[List of stratigraphic units with dinosaur trace fossils#Eggs or nests|Dinosaur eggs]]

== References ==
{{Reflist|2}}

=== Bibliography ===
* {{cite LSA |last=Weishampel |first=David B. |last2=Dodson |first2=Peter |last3=Osmólska |first3=Halszka (eds.) |year=2004 |title=The Dinosauria, 2nd edition |url=https://books.google.com/books?id=vtZFDb_iw40C |publisher=Berkeley: University of California Press |pages=1–880 |accessdate=2019-02-21}} {{ISBN|0-520-24209-2}}
* {{cite LSA |last=Kohring |first=R. |first2=K. |last2=Bandel |first3=D. |last3=Kortum |first4=S. |last4=Parthasararthy |year=1996 |title=Shell structure of a dinosaur egg from the Maastrichtian of Ariyalur (southern India) |journal=[[Neues Jahrbuch für Geologie und Paläontologie - Monatshefte]] |volume=1996 |pages=48–64}}
* {{cite LSA |last=Aziz |first=S.A. |first2=R. M. |last2=Badve |year=1990 |title=Occurrence of ''Hemipneustes'' Agassiz (Echinoid) from Tiruchirapalli Cretaceous, Tamil Nadu, India |journal=[[Journal of the Geological Society of India]] |volume=36 |pages=326-330}}
* {{cite LSA |last=Ayyasami |first=K |year=1989 |title=Genus ''Anisomyon'' (Gastropoda) from the Cretaceous of Southern India |journal=[[Journal of the Geological Society of India]] |volume=33 |pages=361–364}}

[[Category:Geologic formations of India]]
[[Category:Upper Cretaceous Series of Asia]]
[[Category:Maastrichtian Stage]]
[[Category:Cretaceous India]]
[[Category:Limestone formations]]
[[Category:Shallow marine deposits]]
[[Category:Reef deposits]]
[[Category:Ooliferous formations]]
[[Category:Paleontology in India]]
[[Category:Geography of Tamil Nadu|Formations]]

Kallakurichi Formation - Revision history

UpdateBot: robot: Update article (please report if you notice any mistake or error in this edit)

->JCW-CleanerBot: /* Bibliography */clean up, replaced: Neues Jahrbuch für Geologie und Paläontologie Monatshefte → Neues Jahrbuch für Geologie und Paläontologie - Monatshefte