Mercedes Formation, Uruguay

Mercedes Formation
Stratigraphic range: Campanian-Maastrichtian
~84–66 Ma

PreЄ

Type| Geological formation
Underlies| Asencio Formation
Overlies| Guichón Formation
Lithology
Primary| Sandstone
Location
Coordinates|  [ ⚑ ] : 33°24′S 58°18′W﻿ / ﻿33.4°S 58.3°W﻿ / -33.4; -58.3
Paleocoordinates|  [ ⚑ ] 37°18′S 41°24′W﻿ / ﻿37.3°S 41.4°W﻿ / -37.3; -41.4
Region| Río Negro & Soriano Departments
Country|  Uruguay
Extent| Norte Basin
Type section
Named for| Mercedes, Uruguay

Mercedes Formation, Uruguay (Uruguay)

The Mercedes Formation is a Late Cretaceous (Campanian to Maastrichtian) geologic formation of the Norte Basin in Uruguay. Fossil dinosaur eggs have been reported from the formation.[1] The formation that reaches a thickness of about 100 metres (330 ft),[2] overlies the Guichón Formation and is overlain by the Asencio Formation.[3]

## Contents

* 1 See also
* 2 References
* 2.1 Bibliography
* 3 Further reading

## See also

* List of dinosaur-bearing rock formations
* List of stratigraphic units with dinosaur trace fossils
* Dinosaur eggs
* List of fossiliferous stratigraphic units in Uruguay

## References

1. ↑ Weishampel et al., 2004, pp.517-607
2. ↑ Tofalo et al., 2011, p.616
3. ↑ Tofalo et al., 2011, p.617

### Bibliography

* Tófalo, Ofelia; Pablo J. Pazos, and Leda Sánchez Bettucci. 2011. Estudio composicional de sedimentitas silicoclásticas y paleosuelos de la Formación Mercedes (Cretácico Superior), Uruguay. Revista de la Asociación Geológica Argentina 68\. 615–626. Accessed 2020-08-23.
* 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

## Further reading

* G. Faccio. 1994. Dinosaurian eggs from the Upper Cretaceous of Uruguay. In K. Carpenter, K. F. Hirsch & J. R. Horner (eds.), Dinosaur Eggs and Babies 47-55

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