Kallamedu Formation

Kallamedu Formation
Kallamedu Formation
Stratigraphic range: Maastrichtian; ~70.6–65.5 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Underlies	Niniyur Formation
Overlies	Archean Basement
Thickness	Variable, typically 5–5,000 km (3.1–3,106.9 mi)
Lithology
Primary	Claystone, siltstone limestone
Other	Conglomerate
Location
Coordinates	11°41′46″N 79°24′46″E / 11.6962°N 79.4127°E
Country	India
Extent	Kallamedu
Type section
Named for	Kallamedu village

The Kallamedu Formation is a Late Cretaceous (Maastrichtian) geologic formation located in India that forms part of the Ariyalur Group.^[1] Dinosaur remains and petrified wood samples are among the known fossils recovered from this formation.^[2]

Paleofauna

Abelisauridae indet. - "disassociated remains."^[3]
Bruhathkayosaurus matleyi - "ilium and ischium, femur, tibia, radius and part of a vertebra (specifically a platycoelous caudal centrum). Remains no longer exist."^[4]
Carnosauria indet.? - "fragmentary remains."^[4]
Crocodilia indet. - "teeth."^[5]
Fusioolithus baghensis - "eggs."^[6]
Kurmademys kallamedensis - "nearly complete skull."^[7]
Notosuchia indet. - "related to Simosuchus."^[5]
Sauropoda indet. - "fragmentary remains."^[8]
Stegosauria indet. - "dermal plate or misinterpreted sauropod bone."^[9]
Titanosauria indet. - "solitary egg."^[6]
Troodontidae indet. - "One isolated tooth (DUGF/52)."^[3]

References

^ Memoirs of the Geological Survey of India. Oxford University. 1865. pp. 107–140.
^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 593-600. ISBN 0-520-24209-2.
^ ^a ^b Goswami, A., Prasad, G., Verma, O. et al. (2013) A troodontid dinosaur from the latest Cretaceous of India. Nat Commun 4, 1703. https://doi.org/10.1038/ncomms2716
^ ^a ^b Yadagiri, P. and Ayyasami, K. (1987). "A carnosaurian dinosaur from the Kallamedu Formation (Maestrichtian horizon), Tamilnadu." In M.V.A. Sastry, V.V. Sastry, C.G.K. Ramanujam, H.M. Kapoor, B.R. Jagannatha Rao, P.P. Satsangi, and U.B. Mathur (eds.), Three Decades of Development in Palaeontology and Stratigraphy in India. Volume 1. Precambrian to Mesozoic. Geological Society of India Special Publication, 11(1): 523-528.
^ ^a ^b Prasad, G. V. R., Verma, O., Flynn, J. J. & Goswami, A. (2013) A new Late Cretaceous vertebrate fauna from the Cauvery basin, South India: implications for Gondwanan palaeobiogeography. Journal of Vertebrate Paleontology.
^ ^a ^b Harsha Dhiman, Guntupalli V. R. Prasad & Anjali Goswami (2019) Parataxonomy and palaeobiogeographic significance of dinosaur eggshell fragments from the Upper Cretaceous strata of the Cauvery Basin, South India, Historical Biology, 31:10, 1310-1322, DOI: 10.1080/08912963.2018.1450408
^ Gaffney, Eugene S; Chatterjee, Sankar; Rudra, Dhiraj K. (2001). "Kurmademys, a new side-necked turtle (Pelomedusoides: Bothremydidae) from the Late Cretaceous of India" (pdf). American Museum Novitates. 3321: 1–16. doi:10.1206/0003-0082(2001)321<0001:kansnt>2.0.co;2. hdl:2246/2938.
^ R. Lydekker. 1877. Notices of new and other Vertebrata from Indian Tertiary and Secondary rocks. Records of the Geological Survey of India 10(1):30-43
^ Peter M. Galton; Krishnan Ayyasami (2017). "Purported latest bone of a plated dinosaur (Ornithischia: Stegosauria), a "dermal plate" from the Maastrichtian (Upper Cretaceous) of southern India". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 285 (1): 91–96. doi:10.1127/njgpa/2017/0671.

[geology-1] Memoirs of the Geological Survey of India. Oxford University. 1865. pp. 107–140.

[cretaceousdistribution-2] Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 593-600. ISBN 0-520-24209-2.

[Goswami2013-3] Goswami, A., Prasad, G., Verma, O. et al. (2013) A troodontid dinosaur from the latest Cretaceous of India. Nat Commun 4, 1703. https://doi.org/10.1038/ncomms2716

[Bruhatyh-4] Yadagiri, P. and Ayyasami, K. (1987). "A carnosaurian dinosaur from the Kallamedu Formation (Maestrichtian horizon), Tamilnadu." In M.V.A. Sastry, V.V. Sastry, C.G.K. Ramanujam, H.M. Kapoor, B.R. Jagannatha Rao, P.P. Satsangi, and U.B. Mathur (eds.), Three Decades of Development in Palaeontology and Stratigraphy in India. Volume 1. Precambrian to Mesozoic. Geological Society of India Special Publication, 11(1): 523-528.

[Prasad2013-5] Prasad, G. V. R., Verma, O., Flynn, J. J. & Goswami, A. (2013) A new Late Cretaceous vertebrate fauna from the Cauvery basin, South India: implications for Gondwanan palaeobiogeography. Journal of Vertebrate Paleontology.

[Dhimpay2019-6] Harsha Dhiman, Guntupalli V. R. Prasad & Anjali Goswami (2019) Parataxonomy and palaeobiogeographic significance of dinosaur eggshell fragments from the Upper Cretaceous strata of the Cauvery Basin, South India, Historical Biology, 31:10, 1310-1322, DOI: 10.1080/08912963.2018.1450408

[American_Museum_Novitates-7] Gaffney, Eugene S; Chatterjee, Sankar; Rudra, Dhiraj K. (2001). "Kurmademys, a new side-necked turtle (Pelomedusoides: Bothremydidae) from the Late Cretaceous of India" (pdf). American Museum Novitates. 3321: 1–16. doi:10.1206/0003-0082(2001)321<0001:kansnt>2.0.co;2. hdl:2246/2938.

[8] R. Lydekker. 1877. Notices of new and other Vertebrata from Indian Tertiary and Secondary rocks. Records of the Geological Survey of India 10(1):30-43

[NJGPA20172-9] Peter M. Galton; Krishnan Ayyasami (2017). "Purported latest bone of a plated dinosaur (Ornithischia: Stegosauria), a "dermal plate" from the Maastrichtian (Upper Cretaceous) of southern India". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 285 (1): 91–96. doi:10.1127/njgpa/2017/0671.

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