Lower Maleri Formation

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
Stratigraphic range:Late Carnianearly Norian
TypeGeological formation
Unit ofGondwana Group
UnderliesUpper Maleri Formation
OverliesBasement
Location
Coordinates19°12′N79°42′E/ 19.2°N 79.7°E/19.2; 79.7
Approximate paleocoordinates36°24′S38°12′E/ 36.4°S 38.2°E/-36.4; 38.2
RegionAndhra Pradesh&Telangana
CountryIndia
ExtentPranhita–Godavari Basin
Lower Maleri Formation is located in India
Lower Maleri Formation
Lower Maleri Formation (India)

Vertebrate fauna

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cf.Angistorhinusand cf.Typothoraxhave also been recovered from it.[2][3]

Vertebratesfrom 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 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
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are insmall text;crossed outtaxa are discredited.

Correlations

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The 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

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References

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  1. ^abcWeishampel et al., 2004, pp.525–527
  2. ^abcdeNovas et al, 2011
  3. ^Kutty et al., 2007
  4. ^"Table 2.1," in Weishampel, et al. (2004). Page 26.
  5. ^"Table 12.1," in Weishampel et al., 2004, p.236
  6. ^Novas et al., 2011, p.343

Bibliography

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  • 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