TheLower Maleri Formationis asedimentaryrock formationfound inAndhra PradeshandTelangana,India.It is the lowermost member of thePranhita–Godavari Basin.It is of lateCarnianto earlyNorianage (Upper Triassic), and is notable for itsfossilsof earlydinosaurs,including thebasalsaurischian(possibletheropod)Alwalkeria.[1]
Lower Maleri Formation | |
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Stratigraphic range:Late Carnian–early Norian | |
Type | Geological formation |
Unit of | Gondwana Group |
Underlies | Upper Maleri Formation |
Overlies | Basement |
Location | |
Coordinates | 19°12′N79°42′E/ 19.2°N 79.7°E |
Approximate paleocoordinates | 36°24′S38°12′E/ 36.4°S 38.2°E |
Region | Andhra Pradesh&Telangana |
Country | India |
Extent | Pranhita–Godavari Basin |
Vertebrate fauna
editcf.Angistorhinusand cf.Typothoraxhave also been recovered from it.[2][3]
Vertebratesfrom the Lower Maleri Formation | ||||||
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Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Alwalkeria[1] | A. maleriensis[1] | Andhra Pradesh | "Partial skull and postcranial remains."[4] | |||
Panthasaurus | P.maleriensis | Atemnospondyl | ||||
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
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Notes Uncertain or tentative taxa are insmall text; |
Correlations
editThe formation has been correlated with theMolteno Formation(Karoo Basin) andPebbly Arkose Formationof Africa, theSanta Maria Formationof theParaná Basinin Brazil, theIschigualasto Formationof theIschigualasto-Villa Unión Basinof Argentina and the lowermostChinle Formationof North America.[6]
See also
editReferences
editBibliography
edit- Novas, Fernando E.;Ezcurra, Martín D.;Chatterjee, Sankar;Kutty, T.S. (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,Bibcode:2010EESTR.101..333N,doi:10.1017/S1755691011020093,retrieved6 April2019
- Kutty, T.S.; Chatterjee, S.; Galton, P.M.; Upchurch, P. (2007),"Basal sauropodomorphs (Dinosauria: Saurischia) from the Lower Jurassic of India: their anatomy and relationships",Journal of Paleontology,81(6): 1552–1574,Bibcode:2007JPal...81.1218K,doi:10.1666/04-074.1
- Weishampel, David B.;Dodson, Peter;Osmólska, Halszka(2004),The Dinosauria, 2nd edition,Berkeley: University of California Press, pp. 1–880,ISBN0-520-24209-2,retrieved21 February2019