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The Asencio Formation is a geological
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 ...
in the
Paraná Basin The Paraná Basin ( pt, Bacia do Paraná, es, Cuenca del Paraná) is a large cratonic sedimentary basin situated in the central-eastern part of South America. About 75% of its areal distribution occurs in Brazil, from Mato Grosso to Rio Grande d ...
of southwestern Uruguay whose strata date back to the
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 ...
-
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 ...
). Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel et al., 2004, pp. 600-604


Vertebrate paleofauna

* ''
Neuquensaurus australis ''Neuquensaurus'' (meaning "Neuquén lizard") is a genus of saltasaurid sauropod dinosaur that lived in the Late Cretaceous, about 80 million years ago in Argentina and Uruguay in South America. Its fossils were recovered from outcrops of the Ana ...
'' * '' Laplatasaurus araukanicus'' * '' Antarctosaurus wichmannianus''Drable-Palmitas
at
Fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...
.org


Fossil eggs

* '' Sphaerovum erbeni''Mones, A. (1980) "Nuevos elementos de la paleoherpetofauna del Uruguay (Crocodilia y Dinosauria)." ''Actas II Congreso Argentino de Paleontologia y Bioestratigrafia y I Congreso Latinoamericano, Buenos Aires'' 1:265-277 (in Spanish) * '' Tacuarembovum oblongum''


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 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 ...
*
Adamantina Formation The Adamantina Formation is a geological formation in the Bauru Basin of western São Paulo state, in southeastern Brazil. Its strata date back to the Late Cretaceous epoch of the Cretaceous Period, during the Mesozoic Era. The formation is p ...
*
Allen Formation The Allen Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous (middle Campanian to early Maastrichtian.Salgado et al., 2007 Dinosaur remains are among the fossils that have been recovered from the formati ...
*
Marília Formation The Marília Formation is a geological formation in Minas Gerais state of southeastern Brazil. Its strata date back to the Maastrichtian, and are part of the Bauru Group. The fossil-bearing Serra da Galga and Ponte Alta members were originally tho ...


References


Bibliography

* {{ISBN, 0-520-24209-2


Further reading

* F. v. Huene. 1929. Terrestrische Oberkreide in Uruguay he terrestrial Upper Cretaceous in Uruguay Centralblatt für Mineralogie, Geologie und Paläontologie Abteilung B 1929:107-112 Geologic formations of Uruguay Upper Cretaceous Series of South America Cretaceous Uruguay Campanian Stage Maastrichtian Stage of South America Sandstone formations Ooliferous formations Paleontology in Uruguay Formations Geography of Colonia Department Geography of Río Negro Department Geography of Soriano Department Geography of Tacuarembó Department