Jump to content

Laguna Palacios Formation

Coordinates: 44°53′38″S 69°23′01″W / 44.89389°S 69.38361°W / -44.89389; -69.38361
From Wikipedia, the free encyclopedia
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 / 44.89389°S 69.38361°W / -44.89389; -69.38361
RegionCentral Patagonia
CountryArgentina
ExtentGolfo San Jorge Basin
Type section
Named forLaguna Palacios
Named byBonaparte
Year defined1978
Laguna Palacios Formation is located in Argentina
Laguna Palacios Formation
Laguna Palacios Formation (Argentina)

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]

See also

[edit]

References

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

Bibliography

[edit]
  • Casal, Gabriel A.; Allard, José O.; Foix, Nicolás (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, retrieved 2019-02-16[permanent dead link]
  • Genise, J.F.; Sciutto, J.C.; Laza, J.H.; González, M.A. (2002), "Fossil bee nests, coleopteran pupal chambers and tuffaceous paleosols from the Late Cretaceous Laguna Palacios Formation, Central Patagonia (Argentina)", Palaeogeography, Palaeoclimatology, Palaeoecology, 177 (3–4): 215–235, Bibcode:2002PPP...177..215G, doi:10.1016/S0031-0182(01)00333-9, retrieved 2019-02-16
  • Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21