| 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 |
| Approximate paleocoordinates | 41°18′S 22°24′W / 41.3°S 22.4°W |
| 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][4]
- Flora
- Schizoneura
- Glossopteris
- Paracalamites
- Pecopteris
- Bivalves
- Leinzia
- Palaeomutela
- Terraia
- Gastropods
- Pseudestheria
- Monoleiolophus
- Euestheria
- Asmussia
- Liograpta
- Synapsids
- Parareptiles
- Amphibians
- Fish
- Paranaichthys longianalis[6]
- Actinopterygii species A-C[7]
- Xenacanthus ragonhai[8]
See also
References
- ↑ "Associação dos Municípios do Extremo Sul Catarinense". AMESC. Archived from the original on 2016-02-22. Retrieved 2015-11-10.
- ↑ "SigRH". Sigrh.sp.gov.br. Retrieved 2015-11-10.
- ↑ Langer et al., 2008, p.1
- ↑ Boos, A. D. S.; Kammerer, C. F.; Schultz, C. L.; Paes Neto, V. D. (2015-11-01). "A tapinocephalid dinocephalian (Synapsida, Therapsida) from the Rio do Rasto Formation (Paraná Basin, Brazil): Taxonomic, ontogenetic and biostratigraphic considerations". Journal of South American Earth Sciences. 63: 375–384. doi:10.1016/j.jsames.2015.09.003. ISSN 0895-9811.
- ↑ Boos et al., 2016, p.4
- ↑ Paranaichthys longianalis at Fossilworks.org
- ↑ Vega-Dias, Cristina; Vieira Dias, Eliseu; Richter, Martha (2000). "ACTINOPTERYGIAN REMAINS FROM THE RIO DO RASTO FORMATION, UPPER PERMIAN OF THE PARANÁ BASIN, BRAZIL". Acta Geologica Leopoldensia. XXIII (51): 21–31.
- ↑ Pauliv, Victor E.; Dias, Eliseu V.; Sedor, Fernando A.; Ribeiro, Ana Maria (2014). "A new Xenacanthiformes shark (Chondrichthyes, Elasmobranchii) from the Late Paleozoic Rio do Rasto Formation (Paraná Basin), Southern Brazil". Anais da Academia Brasileira de Ciências. 86: 135–145. doi:10.1590/0001-37652014107612. ISSN 0001-3765.
Bibliography
- Boos, Alessandar D.S.; Christian F. Kammerer; Cesar L. Schultz; Marina B. Soares, and Ana L.R. Ilha. 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 PMID 27224287 PMC 4880204
- Langer, Max Cardoso; Estevan Eltink; Jonathas de Souza Bittencour, and R. Rohn. 2008. Uma janela paleobiológica para o Permiano continental Sul-americano, 1–17. Serra do Cadeado, PR. Accessed 2017-08-19.
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