Los Blanquitos Formation

Los Blanquitos Formation
Stratigraphic range: Campanian
Type Geological formation
Unit of Salta Group
Underlies Lecho Formation
Overlies Los Curtiembres Formation
Lithology
Primary Sandstone
Location
Coordinates 24°18′S 65°18′W / 24.3°S 65.3°W / -24.3; -65.3Coordinates: 24°18′S 65°18′W / 24.3°S 65.3°W / -24.3; -65.3
Approximate paleocoordinates 27°36′S 47°30′W / 27.6°S 47.5°W / -27.6; -47.5
Region Salta Province
Country  Argentina
Extent Salta Basin

The Los Blanquitos Formation is a geological formation in Salta Province, Argentina whose strata date back to the Campanian. Dinosaur remains are among the fossils that have been recovered from the formation.[1] The formation comprises friable, micaceous, grayish-red sandstones with quartz pebbles furrowed with small carbonate veins. In the base of this layer the remains of a titanosaurid dinosaur were discovered. Above the layer with bones appears a lens of thick, greenish-gray, calcareous, very hard sandstone with pebbles and gravel. The bones were covered by a "halo" of the same rock but of greenish or grayish color, especially visible because the normal sediment is red. The bed thickness is 1.5 metres (4.9 ft).[2]

Vertebrate paleofauna

See also

References

  1. ↑ Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 600-604. ISBN 0-520-24209-2.
  2. 1 2 3 Arroyo El Morterito at Fossilworks.org
  3. ↑ "Table 10.1," in Weishampel, et al. (2004). Page 199.

Further reading

  • J.F. Bonaparte and G. Bossi. 1967. Sobre la presencia de dinosaurios en la Formación Pirgua del Grupo Salta y su significado cronologico [On the presence of dinosaurs in the Pirgua Formation of the Salta Group and its chronologic significance]. Acta Geologica Lilloana 9:25-44
  • Powell, J.E. 2003. Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum Launceston 111:1-173
  • Powell, J.E. 1979. Sobre una asociacion de dinosaurios y otras evidencias de vertebrados del Cretacico superior de la region de La Candelaria, Prov. de Salta, Argentina. Ameghiniana 16: pp.191-204
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.