Sanga do Cabral Formation

Sanga do Cabral Formation
Stratigraphic range: Early Triassic
Sanga do Cabral Formation. Source: UFSM
Type	Geological formation
Unit of	Rosário do Sul Group
Underlies	Santa Maria Formation
Overlies	Pirambóia Formation
Lithology
Primary	Sandstone, conglomerate
Location
Coordinates	29°36′S55°06′W / 29.6°S 55.1°W / -29.6; -55.1
Approximate paleocoordinates	49°00′S24°36′W / 49.0°S 24.6°W / -49.0; -24.6
Region	Paleorrota Rio Grande do Sul
Country	Brazil
Extent	Paraná Basin
Geopark of Paleorrota

The Sanga do Cabral Formation is an Early Triassic sedimentary rock formation found in Rio Grande do Sul, Brazil. ^[1]

Description

This rock formation is located in the geopark of Paleorrota, and is located to the south of another geopark. The formation dates to 249 million years ago and belongs to the Lower Triassic. ^[2]

The Sanga do Cabral Formation is correlated with the "impoverished zone" (Procolophon subzone) of the Lystrosaurus Assemblage Zone of the Karoo Basin of South Africa by some authors on the basis of the abundant records of Procolophon .

Fossil content

Among others, the following fossils have been reported from the formation: ^[3]

• Elessaurus gondwanoccidens
• Kwatisuchus rosai ^[4]
• Oryporan insolitus ^[5]
• Procolophon trigoniceps ^[6]
• Sangaia lavinai ^[7]
• Teyujagua paradoxa
• Tomeia witecki ^[8]
• Cynodontia indet.
• Plagiosterninae indet. ^[9]
• Temnospondyli indet.

Formations

Mata

Santa Maria

São
Pedro

São Sepé

Cachoeira

Candelária

Rio Pardo

Santa Cruz

Venâncio

Aceguá

Alegrete

Bagé

Rosário

São Gabriel

Caçapava

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Geological formations in Rio Grande do Sul:

• 1) Serra Geral Formation, Cretaceous
  
• 2) Botucatu Formation, Cretaceous
  
• 3) Guará Formation, Jurassic
  
• 4) Santa Maria Formation & Caturrita Formation, Triassic
  
• 5) Sanga do Cabral Formation, Triassic
  
• 6) Piramboia Formation, Permian
  
• 7) Itararé Group, Permian

See also

• Santa Maria Formation
• Caturrita Formation
• List of dinosaur-bearing rock formations

References

1. Sanga do Cabral Formation at Fossilworks.org
2. (in Portuguese) Es Sincro Archived May 1, 2008, at the Wayback Machine
3. Cachoeira do Sul at Fossilworks.org
4. Pinheiro, Felipe L.; Eltink, Estevan; Paes-Neto, Voltaire D.; Machado, Arielli F.; Simões, Tiago R.; Pierce, Stephanie E. (2024-01-19). "Interrelationships among Early Triassic faunas of Western Gondwana and Laurasia as illuminated by a new South American benthosuchid temnospondyl" . The Anatomical Record. 307 (4): 726–743. doi:10.1002/ar.25384. ISSN   1932-8486. PMID   38240478.
5. Pinheiro, F. L.; Silva-Neves, E.; Da-Rosa, A. A. (2021). "An early-diverging procolophonid from the lowermost Triassic of South America and the origins of herbivory in Procolophonoidea". Papers in Palaeontology . 7 (3): 1601–1612. Bibcode:2021PPal....7.1601P. doi:10.1002/spp2.1355. S2CID   233797716.
6. Cisneros & Schultz, 2002
7. Dias da Silva et al., 2006
8. Eltink et al., 2017
9. Dias da Silva & Ramos Ilha, 2009

Bibliography

• De Oliveira, T. M.; Pinheiro, F. L.; Stock Da Rosa, A. A.; Dias Da Silva, S.; Kerber, L. (2020), "A new archosauromorph from South America provides insights on the early diversification of tanystropheids", PLoS ONE , 15 (4): e0230890, Bibcode:2020PLoSO..1530890D, doi: 10.1371/journal.pone.0230890 , PMC   7141609 , PMID   32267850
• Eltink, E.; Da Rosa, A. A. S.; Dias Da Silva, S. (2017), "A capitosauroid from the Lower Triassic of South America (Sanga do Cabral Supersequence: Paraná Basin), its phylogenetic relationships and biostratigraphic implications", Historical Biology , 29 (7): 863–874, Bibcode:2017HBio...29..863E, doi:10.1080/08912963.2016.1255736
• Da Rosa, A. A. S.; Pineiro, G.; Dias Da Silva, S.; Cisneros, J. C.; Feltrin, F. F.; Neto, L. W. (2009), "Bica São Tomé, um novo sítio fossilífero para o Triássico inferior do sul do Brasil", Revista Brasileira de Paleontologia , 12: 67–76
• Dias Da Silva, Sérgio; Ramos Ilha, Ana Luiza (2009), "On the presence of a pustulated temnospondyl in the Lower Triassic of southern Brazil", Acta Palaeontologica Polonica , 54 (4): 609–614, doi: 10.4202/app.2008.0073
• Dias Da Silva, S.; Marsicano, C.; Schultz, C. L. (2006), "Rhytidosteid temnospondyls in Gondwana: a new taxon from the Lower Triassic of Brazil", Palaeontology , 49 (2): 381–390, Bibcode:2006Palgy..49..381D, doi:10.1111/j.1475-4983.2006.00545.x, hdl: 11336/93652
• Cisneros, J. C.; Schultz, C. L. (2002), "Procolophon brasiliensis n. sp., a new procolophonid reptile from the Lower Triassic of southern Brazil", Neues Jahrbuch für Geologie und Paläontologie - Monatshefte , 2002 (11): 641–648, doi:10.1127/njgpm/2002/2002/641
• Lavina, E. L (1983), "Procolophon pricei sp. n., um novo réptil procolofonídeo do Triássico do Rio Grande do Sul", Iheringia, Série Geologia , 9: 51–78

Further reading

• "First record of non-mammalian cynodonts (Therapsida) in the Sanga do Cabral Formation (Early Triassic) of southern Brazil". Wiredspace.wits.ac.za. Retrieved 2015-09-08.