Takutu Formation

Takutu Formation
Stratigraphic range: Late Jurassic
Type	Geological formation
Unit of	Rewa Group
Lithology
Primary	Sandstone
Location
Coordinates	3°00′N59°42′W / 3.0°N 59.7°W / 3.0; -59.7
Approximate paleocoordinates	3°12′N27°24′W / 3.2°N 27.4°W / 3.2; -27.4
Region	Upper Takutu-Upper Essequibo
Country	Brazil Guyana
Extent	Guyana Shield
Type section
Named for	Takutu River
Takutu Formation (Guyana)

The Takutu Formation is a Late Jurassic geologic formation in Guyana and northern Brazil. The formation comprises sandstones deposited in a shallow water to littoral setting. ^[1] Fossil theropod tracks (a type of dinosaur) have been reported from the formation. ^{[2] [3]} A paleobotanic analysis of drill cores of the formation was conducted by Thomas van der Hammen in 1966 and showed fossil Classiopolis flora. ^[1]

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with theropod tracks
• List of fossiliferous stratigraphic units in Guyana

References

1. Berrangé, 1977, p.84
2. Weishampel et al., 2004, pp.517-607
3. Leonardi, 1994, p.69

Bibliography

• Berrangé, J.P (1977), "The geology of Southern Guyana, South America", Institute of Geological Sciences Overseas Memoir, 4: 1–112, retrieved 2018-09-07
• Leonardi, Giuseppe (1994), Annotated Atlas of South America Tetrapod Footprints (Devonian to Holocene) with an appendix on Mexico and Central America, Ministerio de Minas e Energia - Companhia de Pesquisa de Recursos Minerais, Geological Service of Brazil, pp. 1–248, retrieved 2019-03-25
• Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN   0-520-24209-2 , retrieved 2019-02-21

Further reading

• R. B. McConnell, D. M. Smith, and J. P. Berrangé. 1969. Geological and geophysical evidence for a rift valley in the Guiana Shield. Geologie en Mijnbouw 48(2):189-199