Lower Maleri Formation
The Lower Maleri Formation is a sedimentary rock formation found in Andhra Pradesh and Telangana, India. It is the lowermost member of the Pranhita–Godavari Basin. It is of late Carnian to early Norian age (Upper Triassic), and is notable for its fossils of early dinosaurs, including the basal saurischian (possible theropod) Alwalkeria.[1]
| Lower Maleri Formation | |
|---|---|
| Stratigraphic range: Late Carnian–early Norian | |
| Type | Geological formation |
| Unit of | Gondwana Group |
| Underlies | Upper Maleri Formation |
| Overlies | Basement |
| Location | |
| Coordinates | 19.2°N 79.7°E |
| Approximate paleocoordinates | 36.4°S 38.2°E |
| Region | Andhra Pradesh & Telangana |
| Country |  India |
| Extent | Pranhita–Godavari Basin |
  Lower Maleri Formation (India) | |
Vertebrate fauna
cf. Angistorhinus and cf. Typothorax have also been recovered from it.[2][3]
| Vertebrates from the Lower Maleri Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Alwalkeria[1] | A. maleriensis[1] | Andhra Pradesh | "Partial skull and postcranial remains."[4] |  | ||
| Panthasaurus | P.maleriensis | A temnospondyl | ||||
| Exaeretodon | E. statisticae[2] |  | ||||
| Hyperodapedon | H. huxleyi[2] |  | ||||
| Malerisaurus | M. robinsonae[2] |  | ||||
| Massospondylus | M. hislopi | Andhra Pradesh | "Isolated vertebrae."[5] | Later found to be indeterminate prosauropod remains | ||
| Parasuchus | P. hislopi[2] | |||||
| Plateosaurus | Indeterminate | Andhra Pradesh | Later found to be indeterminate prosauropod remains | |||
Color key
|
Notes Uncertain or tentative taxa are in small text; |
Correlations
The formation has been correlated with the Molteno Formation (Karoo Basin) and Pebbly Arkose Formation of Africa, the Santa Maria Formation of the Paraná Basin in Brazil, the Ischigualasto Formation of the Ischigualasto-Villa Unión Basin of Argentina and the lowermost Chinle Formation of North America.[6]
References
- Weishampel et al., 2004, pp.525–527
- Novas et al, 2011
- Kutty et al., 2007
- "Table 2.1," in Weishampel, et al. (2004). Page 26.
- "Table 12.1," in Weishampel et al., 2004, p.236
- Novas et al., 2011, p.343
Bibliography
- Novas, Fernando E.; Martín D. Ezcurra; Sankar Chatterjee, and T.S. Kutty. 2011. New dinosaur species from the Upper Triassic Upper Maleri and Lower Dharmaram formations of central India. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 101(3-4). 333–349. Accessed 2019-04-06. doi:10.1017/S1755691011020093
- Kutty, T.S.; S. Chatterjee; P.M. Galton, and P. Upchurch. 2007. Basal sauropodomorphs (Dinosauria: Saurischia) from the Lower Jurassic of India: their anatomy and relationships. Journal of Paleontology 81(6). 1552–1574. . doi:10.1666/04-074.1
- Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21.ISBN 0-520-24209-2
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