Santa Maria Formation
| Santa Maria Formation | |
|---|---|
| Stratigraphic range: Upper Triassic and Middle Triassic | |
 Santa Maria Formation. Source: UFSM | |
| Type | Geological formation |
| Location | |
| Coordinates | -29.695042, -53.795403 |
| Region |  Paleorrota Rio Grande do Sul |
| Country |  Brazil |
 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 (Middle – Upper 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]
Fauna
Vertebrates
An unnamed prosauropod species is present in Rio Grande do Sul.[1]
| Vertebrates reported from the Santa Maria Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|
Rio Grande do Sul.[1] |
A synapsid. |
 | ||||
|
C. barberenai[5] |
Rio Grande do Sul.[5] |
A partial mandible having some complete teeth.[5] |
||||
|
C. bonapartei[6] |
Rio Grande do Sul.[6] |
Disarticulated cranial and postcranial elements.[6] |
||||
|
P. barberenai[7] |
Rio Grande do Sul.[7] |
|
"ULBRA-PVT016, disarticulated partial skeleton... including most skull bones"[7] |
A basal sauropodomorph dinosaur. | ||
|
P. aurelioi[8] |
||||||
|
S. hopsoni[9] |
Rio Grande do Sul.[9] |
Cranial remains.[9] |
||||
|
S. tupinquim[1] |
Rio Grande do Sul.[1] |
|
A basal sauropodomorph dinosaur. | |||
|
S. absconditum[1] |
Rio Grande do Sul.[1] |
|
"Various postcranial remains."[11] |
Might not be dinosaurian.[1] | ||
|
S. pricei[1] |
Rio Grande do Sul.[1] |
|
"Partial postcranial skeleton with mandible."[11] |
A herrerasaurid dinosaur. | ||
|
T. barbarenai[1] |
Rio Grande do Sul.[1] |
|
"Right femur and tibia."[11] |
Might not be dinosaurian.[1] | ||
|
T. riograndensis |
A synapsid. | |||||
Formations
See also
Footnotes
- ^ a b c d e f g h i j k l m n o p q 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.
- ^ Formação Santa Maria, (in Portuguese)
- ^ Paleoformações, (in Portuguese)
- ^ Romer, A. S. The Brazilian cynodont reptiles Belesodon and Chiniquodon. Breviora, 1969a, 332, 1–16. Online: Biodiversity Heritage Library
- ^ a b c d e Téo Veiga De Oliveira, Cesar Leandro Schultz, Marina Bento Soares and Carlos Nunes Rodrigues (2011). "A new carnivorous cynodont (Synapsida, Therapsida) from the Brazilian Middle Triassic (Santa Maria Formation): Candelariodon barberenai gen. et sp. nov" (PDF). Zootaxa. 3027: 19–28. ISSN 1175-5334.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ a b c d e Tiago Raugust, Marcel Lacerda; Cesar Leandro Schultz (in press). "The first occurrence of Chanaresuchus bonapartei Romer 1971 (Archosauriformes, Proterochampsia) of the Middle Triassic of Brazil from the Santacruzodon Assemblage Zone, Santa Maria Formation (Paraná Basin)". In S.J. Nesbitt; J.B. Desojo; R.B. Irmis (eds.). Anatomy, phylogeny and palaeobiology of early archosaurs and their kin. The Geological Society of London. doi:10.1144/SP379.22.
{{cite book}}: Check date values in:|year=(help); Unknown parameter|lastauthoramp=ignored (|name-list-style=suggested) (help)CS1 maint: year (link) - ^ a b c d e Cabreira, Sergio F.; Cesar L. Schultz; Jonathas S. Bittencourt; Marina B. Soares; Daniel C. Fortier; Lúcio R. Silva; Max C. Langer (2011). "New stem-sauropodomorph (Dinosauria, Saurischia) from the Triassic of Brazil". Naturwissenschaften. 98 (12): 1035–1040. Bibcode:2011NW.....98.1035C. doi:10.1007/s00114-011-0858-0. PMID 22083251.
- ^ a b c Lúcio Roberto-da-Silva, Julia B. Desojo, Sérgio F. Cabreira, Alex S. S. Aires, Rodrigo T. Müller, Cristian P. Pacheco and Sérgio Dias-da-Silva (2014). "A new aetosaur from the Upper Triassic of the Santa Maria Formation, southern Brazil". Zootaxa. 3764 (3): 240–278. doi:10.11646/zootaxa.3764.3.1.
{{cite journal}}: CS1 maint: multiple names: authors list (link) - ^ a b c d e F. Abdala; A. M. Ribeiro (2003). "A new traversodontid cynodont from the Santa Maria Formation (Ladinian-Carnian) of southern Brazil, with a phylogenetic analysis of Gondwanan traversodontids". Zoological Journal of the Linnean Society. 139 (4): 529–545. doi:10.1111/j.1096-3642.2003.00096.x.
{{cite journal}}: Unknown parameter|lastauthoramp=ignored (|name-list-style=suggested) (help) - ^ Langer, M.C., Abdala, F., Richter, M., and Benton, M. (1999). "A sauropodomorph dinosaur from the Upper Triassic (Carnian) of southern Brazil." Comptes Rendus de l'Académie des Sciences, 329: 511-;517.
- ^ a b c d e f "Table 2.1," in Weishampel, et al. (2004). Page 26.
- ^ "Table 12.1," in Weishampel, et al. (2004). Page 235.
References
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
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