Rio do Rasto Formation

Rio do Rasto Formation
Stratigraphic range: Late Permian
Type Geological formation
Unit of Paraná & Pelotas Basins
Sub-units Morro Pelado Mb., Serrinha Mb.
Underlies Pirambóia Formation (Paraná Basin)
Botucatu Formation (Pelotas Basin)
Overlies Teresina Formation
Lithology
Primary Shale, sandstone
Location
Coordinates 28°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 paleocoordinates 41°18′S 22°24′W / 41.3°S 22.4°W / -41.3; -22.4
Region Paraná, Santa Catarina, Rio Grande do Sul
Country  Brazil
Extent Paraná Basin

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.

Geography

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

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

  • Bivalves
    • Leinzia
    • Palaeomutela
    • Terraia
  • Gastropods
    • Pseudestheria
    • Monoleiolophus
    • Euestheria
    • Asmussia
    • Liograpta
  • Fish
    • Paranaichthys longianalis[5]

See also

References

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

Bibliography

  • Boos, Alessandar D.S.; Kammerer, Christian F.; Schultz, Cesar L.; Soares, Marina B.; Ilha, Ana L.R. (2016). "A New Dicynodont (Therapsida: Anomodontia) from the Permian of Southern Brazil and Its Implications for Bidentalian Origins". PLOS ONE. 11 (5): 1–21. doi:10.1371/journal.pone.0155000. PMC 4880204. PMID 27224287.
  • Langer, Max Cardoso; Eltink, Estevan; Bittencour, Jonathas de Souza; Rohn, R. (2008). "Uma janela paleobiológica para o Permiano continental Sul-americano" (PDF). Serra do Cadeado, PR: 1–17. Retrieved 2017-08-19.
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