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Santa Maria Formation
FormacaoX
Santa Maria Formation. Source: UFSM
Type Geological formation
Age Upper Triassic - Middle Triassic
Lithology
Location
Region Geopark of Paleorrota in Rio Grande do Sul
Country Brazil
Paleorrota3
Geopark of Paleorrota


The Santa Maria Formation is a sedimentary rock formation found in Rio Grande do Sul, Brazil. It has a late Ladinian – early Carnian age (MiddleUpper Triassic), and is notable for its fossils of early dinosaurs, including the herrerasaur Staurikosaurus, the basal saurischian Teyuwasu, and the basal sauropodomorph Saturnalia.[1] It received this name because it was discovered first in the city of Santa Maria.

The distinguished English paleontologist Arthur Smith Woodward determined the age of Santa Maria Formation dated Mesozoic Era, Upper Triassic period (about 220 million years).

The Santa Maria Formation is in the geopark of Paleorrota. [2] [3]

See alsoEdit

ReferencesEdit

  1. ^ Weishampel, David B; et al (2004). "Dinosaur distribution (Late Triassic, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 527–528. ISBN 0-520-24209-2.
  2. ^ http://www.lenep.uenf.br/~severian/es-sm-sincro.html Formação Santa Maria, (in Portuguese)
  3. ^ http://www.pesquisasemgeociencias.ufrgs.br/arquivos/ARTIGO311.pdf Paleoformações, (in Portuguese)

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