Rio do Rasto Formation

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
Rio do Rasto Formation
Stratigraphic range: Late Permian
TypeGeological formation
Unit ofParaná & Pelotas Basins
Sub-unitsMorro Pelado Mb., Serrinha Mb.
UnderliesPirambóia Formation (Paraná Basin)
Botucatu Formation (Pelotas Basin)
OverliesTeresina Formation
PrimaryShale, sandstone
Coordinates28°24′26″S 49°32′46″W / 28.40722°S 49.54611°W / -28.40722; -49.54611Coordinates: 28°24′26″S 49°32′46″W / 28.40722°S 49.54611°W / -28.40722; -49.54611
Approximate paleocoordinates41°18′S 22°24′W / 41.3°S 22.4°W / -41.3; -22.4
RegionParaná, Santa Catarina, Rio Grande do Sul
Country Brazil
ExtentParaná Basin
Mapa Geologia Bacia do Paraná simples.png
Extent of Paleozoic (including the Rio do Rasto Formation) and Mesozoic units in the Paraná Basin in light blue

The Rio do Rasto Formation is a Late Permian sedimentary geological formation in the South Region of Brazil. The official name is Rio do Rasto, although in some publications it appears as Rio do Rastro.


It is found mainly in the Brazilian states of Santa Catarina, Paraná, and Rio Grande do Sul. It was formed during the Late Permian epoch of the Permian period.[1][2]

Fossil content[edit]

The following fossils have been uncovered from the formation:[3]

See also[edit]


  1. ^ "Associação dos Municípios do Extremo Sul Catarinense". AMESC. Archived from the original on 2016-02-22. Retrieved 2015-11-10.
  2. ^ "SigRH". Retrieved 2015-11-10.
  3. ^ Langer et al., 2008, p.1
  4. ^ Boos et al., 2016, p.4
  5. ^ Paranaichthys longianalis at