Laguna Palacios Formation

The Laguna Palacios Formation is a Maastrichtian geologic formation of the Chubut Group in the Golfo San Jorge Basin in Patagonia, Argentina. The formation partly overlies and partly is laterally equivalent to the Lago Colhué Huapí Formation and is overlain by the Salamanca Formation of the Río Chico Group.[1] The formation comprises tuff reworked by fluvial activity and paleosols. The Laguna Palacios Formation has provided fossilized bee nests.[2] Dinosaur remains, such as Notoceratops, diagnostic to the genus level are among the fossils that have been recovered from the formation.[3]

Laguna Palacios Formation
Stratigraphic range: Maastrichtian
TypeGeological formation
Unit ofChubut Group
UnderliesRío Chico Group (Salamanca Formation)
OverliesLago Colhué Huapí Formation
Lithology
PrimaryTuff
Location
Coordinates44°53′38″S 69°23′01″W
RegionCentral Patagonia
Country Argentina
ExtentGolfo San Jorge Basin
Type section
Named forLaguna Palacios
Named byBonaparte
Year defined1978
Laguna Palacios Formation (Argentina)

See also

References

  1. Casal et al., 2015, p.90
  2. Genise et al., 2002
  3. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.

Bibliography

  • Casal, Gabriel A.; José O. Allard, and Nicolás Foix. 2015. Análisis estratigráfico y paleontológico del Cretácico Superior en la Cuenca del Golfo San Jorge: Nueva unidad litoestratigráfica para el Grupo Chubut. Revista de la Asociación Geológica Argentina 72. 77–95. Accessed 2019-02-16.
  • Genise, J.F.; J.C. Sciutto; J.H. Laza, and M.A. González. 2002. Fossil bee nests, coleopteran pupal chambers and tuffaceous paleosols from the Late Cretaceous Laguna Palacios Formation, Central Patagonia (Argentina). Palaeogeography, Palaeoclimatology, Palaeoecology 177. 215–235. Accessed 2019-02-16.
  • 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
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