Cerro Fortaleza Formation

The Cerro Fortaleza Formation, in older literature described as Pari Aike Formation, is a Late Cretaceous geologic formation of Cenomanian[1] (formerly believed to be Maastrichtian) age of the Austral Basin in southern Patagonia, Argentina.

"Pari Aike Formation" redirects here. It is not to be confused with Pali-Aike volcanic field.
Cerro Fortaleza Formation
Stratigraphic range: Cenomanian
~99–94 Ma
↓
TypeGeological formation
UnderliesLa Irene Formation
OverliesAnita Formation
Thickness460 m (1,510 ft)
Lithology
PrimarySandstone
Location
Coordinates49.9°S 72.1°W / -49.9; -72.1
Approximate paleocoordinates51.9°S 61.8°W / -51.9; -61.8
RegionSanta Cruz Province, southern Patagonia
Country Argentina
ExtentAustral Basin
Cerro Fortaleza Formation (Argentina)

Description
late Early Cretaceous (105 Ma)

The sandstones of the formation were deposited in a fluvial environment. The formation has an estimated thickness of 460 metres (1,510 ft) and overlies the Anita Formation, while it is overlain by the La Irene Formation.[2] These formations are considered Campanian & Maastrichtian in age, respectively,[2][3] making the Cerro Fortaleza Formation aged between them.

The giant titanosaurs Puertasaurus and Dreadnoughtus, the megaraptoran Orkoraptor, Austrocheirus isasii, and the ornithopod Talenkauen have been recovered from the formation alongside turtles and crocodiles.[4]

gollark: I think what they mean is that you introduced a new definition, and the fact that `*` is that can't be derived from anything else.
gollark: Oh, I thought you meant 40 atoms.
gollark: According to contrametaapiologists, that's ridiculous as you can merely summon bees from the void to do work.
gollark: Consume PURE sucrose.
gollark: According to research from osmarks.tk™, it is possible that continuing research into life extension technologies will make death non-inevitable, but quite probably not before current osmarks.tk™ employees succumb.

See also
  • List of dinosaur-bearing rock formations

References
  1. Varela et al., 2012
  2. Marenssi et al., 2003, p.406
  3. Varela et al., 2012
  4. Novas et al., 2008

Bibliography
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.