Santa Maria Formation

1. Unnamed genus.

1. S.
   
   
   
   
   
   
   
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   The Santa Maria Formation is a sedimentary rock formation found in Rio Grande do Sul
   Rio Grande do Sul
   
   is the southernmost States of Brazil of Brazil, and the State with the fourth highest Human Development Index . In Rio Grande do Sul is the most southern city of the country, Chu?, on Uruguayan border....
   , Brazil
   Brazil
   
   Brazil , officially the Federative Republic of Brazil , is a country in South America. It is the List of countries and outlying territories by total area country by geographical area, occupying nearly half of South America, the List of countries by population country, and the fourth most populous democracy in the world....
   . It has a late Ladinian
   Ladinian
   
   The Ladinian is a faunal stage of the Middle Triassic epoch . It spans the time between 237 ? 2 annum and 228 ? 2 Ma . The Ladinian was preceded by the Anisian Stage and succeeded by the Carnian Stage of the Late Triassic Period....
    – early Carnian
   Carnian
   
   The Carnian is the lowermost stage of the Upper Triassic series . Its boundaries are not characterized by major extinctions or biotic turnovers, but a climatic event occurred during the Carnian and seems to be associated with important extinctions or biotic radiations....
    age (Middle
   Middle Triassic
   
   The Middle Triassic is the second of three epoch s of the Triassic geological timescale. It spans the time between 245 ? 1.5 annum and 228 ? 2 Ma . The Middle Triassic is divided into the Anisian and Ladinian faunal stages....
    – Upper Triassic), and is notable for its fossil
   Fossil
   
   Fossils are the preserved remains or trace fossil of animals, plants, and other organisms from the remote past. The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous Rock formations and sedimentary rock layers is known as the fossil record....
   s of early dinosaur
   Dinosaur
   
   Dinosaurs were the dominant vertebrate animals of Landform ecosystems for over 160 million years, from the late Triassic Period until the end of the Cretaceous Period , when most of them became extinct in the Cretaceous?Tertiary extinction event....
   s, including the herrerasaur
   Herrerasaur
   
   Herrerasaurs are among the oldest known dinosaurs, appearing in the fossil record about 228 million years ago . They became extinct by the end of the Triassic period....
    Staurikosaurus
   Staurikosaurus
   
   Staurikosaurus is a genus of early dinosaur from the Late Triassic of Brazil....
   , the basal
   Basal (phylogenetics)
   
   In phylogenetics, a basal clade is the earliest clade to branch in a larger clade; it appears at the base of a cladogram.A basal group form an outgroup to the rest of the clade, such as in the following example:...
    saurischian Teyuwasu
   Teyuwasu
   
   'Teyuwasu' is a dubious genus of dinosaur from the Late Triassic. Named by E.E. Kischlat in 1999, little is currently known about this genus; the type species, T....
   , and the basal sauropodomorph
   Sauropodomorpha
   
   The Sauropodomorpha were a group of long-necked, herbivore dinosaurs that eventually dropped down on quadruped and became the largest animals that ever terrestrial animal....
    Saturnalia
   Saturnalia (dinosaur)
   
   Saturnalia is a genus of very early saurischian dinosaur, from the Carnian faunal stage of the late Triassic period , making it one of the oldest true dinosaurs yet found....
   . It received this name because it was discovered first in the city of Santa Maria.
   
   The distinguished English
   England
   
   native_name =|conventional_long_name = England|common_name = England|image_flag = Flag of England.svg|image_coat = England COA.svg|symbol_type = Royal Coat of Arms...
    paleontologist Arthur Smith Woodward
   Arthur Smith Woodward
   
   Sir Arthur Smith Woodward was an England palaeontologist....
    determined the age of Santa Maria Formation
   Santa Maria Formation
   
   The Santa Maria Formation is a sedimentary geological formation found in Rio Grande do Sul, Brazil. It has a late Ladinian ? early Carnian age , and is notable for its fossils of early dinosaurs, including the herrerasaur Staurikosaurus, the basal saurischian Teyuwasu, and the basal sauropodomorpha Saturnalia ....
    dated Mesozoic
   Mesozoic
   
   The Mesozoic Era is one of three Geologic time scale of the Phanerozoic eon . The division of time into eras dates back to Giovanni Arduino, in the 18th century, although his original name for the era now called the 'Mesozoic' was 'Secondary' ....
    Era, Upper Triassic period (about 220 million years).
   
   The Santa Maria Formation is in the geopark
   Geopark
   
   A Geopark is defined by the United Nations Educational, Scientific and Cultural Organization in its UNESCO Geoparks International Network of Geoparks programme as follows:...
    of Paleorrota
   Paleorrota
   
   Paleorrota , is a geopark located in the center of the state of the Rio Grande do Sul in Brazil, along which are found Triassic rocks and fossils, from a time when there was only the continent Pangaea....
   .
   
   

   Fauna

   
   

   Dinosaurs

   Dinosaur Dinosaur Dinosaurs were the dominant vertebrate animals of Landform ecosystems for over 160 million years, from the late Triassic Period until the end of the Cretaceous Period , when most of them became extinct in the Cretaceous?Tertiary extinction event.... s of the Santa Maria Formation
   Taxa	Presence	Notes	Images
   Infraorder: Prosauropoda Prosauropoda Prosauropoda or prosauropods were a group of early herbivorous dinosaurs that lived during the Triassic and early Jurassic periods. They were frequently the predominant herbivore in their environment, and quickly reached large size .... Unnamed genus.	Geographically present in Rio Grande do Sul Rio Grande do Sul is the southernmost States of Brazil of Brazil, and the State with the fourth highest Human Development Index . In Rio Grande do Sul is the most southern city of the country, Chu?, on Uruguayan border.... .
   Genus: Saturnalia Saturnalia (dinosaur) Saturnalia is a genus of very early saurischian dinosaur, from the Carnian faunal stage of the late Triassic period , making it one of the oldest true dinosaurs yet found.... S. tupinquim	Geographically present in Rio Grande do Sul.
   Genus: Spondylosoma Spondylosoma Spondylosoma is a genus of archosaur of uncertain affinities from the Ladinian-age Middle Triassic Santa Maria Formation of Rio Grande do Sul Brazil.... S. absconditum	Geographically present in Rio Grande do Sul.	Might not be dinosaurian.
   Genus: Staurikosaurus Staurikosaurus Staurikosaurus is a genus of early dinosaur from the Late Triassic of Brazil.... S. pricei	Geographically present in Rio Grande do Sul.
   Genus: Teyuwasu Teyuwasu 'Teyuwasu' is a dubious genus of dinosaur from the Late Triassic. Named by E.E. Kischlat in 1999, little is currently known about this genus; the type species, T.... T. barbarenai	Geographically present in Rio Grande do Sul.	Might not be dinosaurian.





See also

• Paleorrota
  Paleorrota
  
  Paleorrota , is a geopark located in the center of the state of the Rio Grande do Sul in Brazil, along which are found Triassic rocks and fossils, from a time when there was only the continent Pangaea....
  
• Caturrita Formation
  Caturrita Formation
  
  The Caturrita Formation is a sedimentary geological formation found in Rio Grande do Sul, Brazil. It has an early Carnian age .Received this name because, Caturrita is a neighborhood of Santa Maria ....
  
• List of dinosaur-bearing rock formations
  List of dinosaur-bearing rock formations
  
  This is a partial list of Dinosaur-Bearing Rock Formations....