Laguna Palacios Formation
| Laguna Palacios Formation | |
|---|---|
| Stratigraphic range: Maastrichtian | |
| Type | Geological formation |
| Unit of | Chubut Group |
| Underlies | Río Chico Group (Salamanca Formation) |
| Overlies | Lago Colhué Huapí Formation |
| Lithology | |
| Primary | Tuff |
| Location | |
| Coordinates | 44°53′38″S 69°23′01″W / 44.89389°S 69.38361°W |
| Region | Central Patagonia |
| Country | Argentina |
| Extent | Golfo San Jorge Basin |
| Type section | |
| Named for | Laguna Palacios |
| Named by | Bonaparte |
| Year defined | 1978 |
  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]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