| La Matilde Formation | |
|---|---|
| Stratigraphic range: Bathonian-Kimmeridgian ~ | |
| Type | Geological formation |
| Underlies | San Julián Formation |
| Overlies | Chon Aike Formation |
| Lithology | |
| Primary | Claystone, sandstone, siltstone |
| Other | Coal beds, conglomerate, tuff |
| Location | |
| Location | Patagonia |
| Coordinates | 47°36′S 68°06′W / 47.6°S 68.1°W |
| Approximate paleocoordinates | 44°12′S 27°18′W / 44.2°S 27.3°W |
| Region | Santa Cruz Province |
| Country | Argentina |
| Extent | Austral Basin |
  La Matilde Formation (Argentina) | |
La Matilde Formation is a Jurassic geological formation in the Austral Basin of Santa Cruz Province, Patagonia, Argentina. It is dated to the Middle to Late Jurassic. From the Bathonian age (164.7 to 167.7 million years ago) to the Kimmeridgian age (150.8 to 155.7 million years ago) at the latest.[1][2][3]
The area was once part of the subtropical and temperate regions of the southern supercontinent Gondwana in the Mesozoic era, a more or less continuous landmass consisting of what is now modern South America, Africa, Antarctica, Australia, New Zealand, and New Guinea.[4][5]