Earth:Laguna Palacios Formation
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| 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
- List of dinosaur-bearing rock formations
- List of stratigraphic units with few dinosaur genera
References
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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