northwest of Kallamedu village: Late Maastrichtian, India
collected by P. Yadagiri
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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| Yadagiri and Ayyasami 1979 | 1 specimen | |||||||||
| long bone, prev. described as stegosaur plate - possibly from a site upstream | ||||||||||
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Bruhathkayosaurus matleyi n. gen., n. sp.
Yadagiri and Ayyasami 1987
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1 individual | |||||||||
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Reptilia
- Testudines
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Kurmademys kallamedensis n. gen., n. sp.
Gaffney et al. 2001
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Gaffney et al. 2001 | 6 individuals | ||||||||
| Holotype skull ISI R152; ISI R155A, partial skull; ISI R155B, partial skull; ISI R155C, partial skull; ISI R158, partial skull; ISI R159, partial skull. | ||||||||||
| see common names | ||||||||||
Geography
| Country: | India | State/province: | Tamil Nadu |
| Coordinates: | 11.2° North, 79.0° East (view map) | ||
| Paleocoordinates: | 40.2° South, 66.0° East (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Altitude: | 86 meters | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Late Maastrichtian | ||
| Age range of interval: | 72.2 - 66 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | fine poorly lithified sandstone |
| Secondary lithology: | green,red claystone |
| Includes fossils? | Y |
| Lithology description: "red and green clays are found interbedded with friable fine-grained sandstones" The Kurmademys locality is a small pocket of fine-grained sandstone and clay, about 6 in. thick | |
| Environment: | lacustrine - small |
| Geology comments: Interpreted as a freshwater pond deposit | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
| Associated major elements: | all |
| Fragmentation: | frequent |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (float),surface (in situ),mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collectors: | P. Yadagiri |
Metadata
| Database number: | 59877 | ||
| Authorizer: | M. Carrano, M. Uhen | Enterer: | M. Carrano, M. Uhen |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2006-04-19 06:01:43 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2006-04-19 06:01:43 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 17189. | ETE | P. Yadagiri and K. Ayyasami. 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, & U. B. Mathur (eds.), Symposium on 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 [M. Carrano/M. Carrano] |
Secondary references:
| 41940 | E. S. Gaffney, S. Chatterjee, and D. K. Rudra. 2001. Kurmademys, a new side-necked turtle (Pelomedusoides: Bothremydidae) from the Late Cretaceous of India. American Museum Novitates 3321:1-16 [R. Benson/R. Benson] | |
| 27976 | E. S. Gaffney, H. Tong, and P. A. Meylan. 2006. Evolution of the side-necked turtles: The families Bothremydidae, Euraxemydidae, and Araripemydidae. Bulletin of the American Museum of Natural History 300:1-318 [M. Uhen/M. Uhen/M. Uhen] | |
| 62814 | P. M. Galton and K. 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 [M. Carrano/M. Carrano/M. Carrano] | |
| 46418 | A. Goswami, G. V. R. Prasad, O. Verma, J. J. Flynn, and R. B. J. Benson. 2013. A troodontid dinosaur from the latest Cretaceous of India. Nature Communications 4:1-5 [P. Mannion/J. Tennant] | |
| 30809 | ETE | G. V. R. Prasad and A. Sahni. 1999. Were there size constraints on biotic exchanges during the northward drift of the Indian plate?. Proceedings of the Indian National Science Academy A (Physical Sciences) 65(3):377-396 [M. Carrano/M. Carrano] |
| 12367 | P. Yadagiri and K. Ayyasami. 1979. A new stegosaurian dinosaur from Upper Cretaceous sediments of south India. Journal of the Geologicial Society of India 20(11):521-530 [L. Ivany/P. Wall/M. Carrano] |