The Sanga do Cabral Formation is an

Early Triassic The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which is ...

sedimentary Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...

rock formation A rock formation is an isolated, scenic, or spectacular surface rock outcrop. Rock formations are usually the result of weathering and erosion sculpting the existing rock. The term ''rock formation'' can also refer to specific sedime ...

found in

Rio Grande do Sul Rio Grande do Sul (, , ; "Great River of the South") is a state in the southern region of Brazil. It is the fifth-most-populous state and the ninth largest by area. Located in the southernmost part of the country, Rio Grande do Sul is border ...

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

.Sanga do Cabral Formation
at

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.org

Description

This

is located in the

geopark A geopark is a protected area with internationally significant geology within which sustainable development is sought and which includes tourism, conservation, education and research concerning not just geology but other relevant sciences. In 20 ...

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 The Early Triassic is the first of three epochs of the Triassic Period of the geologic timescale. It spans the time between Ma and Ma (million years ago). Rocks from this epoch are collectively known as the Lower Triassic Series, which is a ...

. The Sanga do Cabral Formation is correlated with the "impoverished zone" (''Procolophon'' subzone) of the ''Lystrosaurus'' Assemblage Zone of the

Karoo Basin The Karoo Supergroup is the most widespread stratigraphic unit in Africa south of the Kalahari Desert. The supergroup consists of a sequence of units, mostly of nonmarine origin, deposited between the Late Carboniferous and Early Jurassic, a perio ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring coun ...

by some authors on the basis of the abundant records of ''

Procolophon ''Procolophon'' is a genus of lizard-like procolophonid parareptiles that first appeared in the Early Triassic (Induan) of South Africa, Brazil, and Antarctica. It persisted through the Permian–Triassic extinction event, but went extinct in ...

''.

Fossil content

Among others, the following fossils have been reported from the formation:Cachoeira do Sul
at

.org * '' Elessaurus gondwanoccidens'' * '' Procolophon trigoniceps''Cisneros & Schultz, 2002 * '' Sangaia lavinai''Dias da Silva et al., 2006 * '' Teyujagua paradoxa'' * '' Tomeia witecki''Eltink et al., 2017 * Cynodontia indet. * Plagiosterninae indet.Dias da Silva & Ramos Ilha, 2009 * Temnospondyli indet.

Formations

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Description

Fossil content

Formations

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Further reading