The Mercedes Formation is a
Late Cretaceous
The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...
(
Campanian
The Campanian is the fifth of six ages of the Late Cretaceous Epoch on the geologic timescale of the International Commission on Stratigraphy (ICS). In chronostratigraphy, it is the fifth of six stages in the Upper Cretaceous Series. Campanian s ...
to
Maastrichtian
The Maastrichtian () is, in the ICS geologic timescale, the latest age (uppermost stage) of the Late Cretaceous Epoch or Upper Cretaceous Series, the Cretaceous Period or System, and of the Mesozoic Era or Erathem. It spanned the interval from ...
) geologic
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondar ...
of the
Norte Basin in
Uruguay
Uruguay (; ), officially the Oriental Republic of Uruguay ( es, República Oriental del Uruguay), is a country in South America. It shares borders with Argentina to its west and southwest and Brazil to its north and northeast; while bordering ...
. Fossil
dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...
eggs have been reported from the formation.
[Weishampel et al., 2004, pp.517-607] The formation that reaches a thickness of about ,
[Tofalo et al., 2011, p.616] overlies the
Guichón Formation and is overlain by the
Asencio Formation.
[Tofalo et al., 2011, p.617]
See also
*
List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
Containing body fossils
* List of stratigraphic units with dinosaur body fossils
** List of stratigraphic units with few ...
**
List of stratigraphic units with dinosaur trace fossils
This is a list of stratigraphic units dinosaur trace fossils have been recovered from. Although Dinosauria is a clade which includes the descendant taxon Aves (modern birds), this article covers only stratigraphic units containing Mesozoic forms. ...
***
Dinosaur eggs
*
List of fossiliferous stratigraphic units in Uruguay
This is a list of fossiliferous stratigraphic units in Uruguay.
__NOTOC__
List of fossiliferous stratigraphic units
See also
*
* South American land mammal ages
* List of gomphothere fossils in South America#Uruguay, Gomphothere fossils i ...
References
Bibliography
*
* {{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
Geologic formations of Uruguay
Upper Cretaceous Series of South America
Cretaceous Uruguay
Campanian Stage
Maastrichtian Stage of South America
Sandstone formations
Ooliferous formations
Fossiliferous stratigraphic units of South America
Paleontology in Uruguay
Formations
Formations