@ARTICLE{TreeBASE2Ref21031,
author = {Max C. Langer and Jonathas S. Bittencourt and Cesar L. Schultz},
title = {A reassessment of the basal dinosaur Guaibasaurus candelariensis, from the Late Triassic Caturrita Formation of South Brazil.},
year = {2011},
keywords = {Dinosauria; Eusaurischia; Norian; Rio Grande do Sul; Saurischia.},
doi = {10.1017/S175569101102007X},
url = {http://www.graemetlloyd.com/matr.html},
pmid = {},
journal = {Earth and Environmental Science Transactions of the Royal Society of Edinburgh},
volume = {101},
number = {},
pages = {301--332},
abstract = {The dinosaur record of the Santa Maria beds of Rio Grande do Sul (Mid?Late Triassic; south Brazil) includes the herrerasaur Staurikosaurus pricei, and two basal members of the sauropodomorph lineage: Saturnalia tupiniquim and Unaysaurus tolentinoi. The most enigmatic of the saurischian taxa is, however, Guaibasaurus candelariensis, previously regarded as either a basal theropod or a basal sauropodomorph. This study provides a detailed anatomical revision of all specimens originally referred to G. candelariensis by Bonaparte and co-authors, including its type-series and a more recently excavated partial postcranium. Although coming from different sites, these specimens share a unique combination of traits, and at least one possible autapomorphic feature of the pelvis, which support the inclusivity and uniqueness of the species. G. candelariensis was a medium-sized (nearly 2 m long) biped with an intriguing mix of plesiomorphic and derived (eusaurischian/theropod) features. Phylogenetic studies reveal weak support for the nesting of G. candelariensis within Theropoda, but this affinity is bolstered by various traits it shares with neothero- pods. The Norian age of G. candelariensis corroborates previous studies that suggest the continuous radiation of more basal dinosauromorphs until the end of the Triassic, after the appearance of the three main dinosaur clades.}
}
Citation for Study 13058
Citation title:
"A reassessment of the basal dinosaur Guaibasaurus candelariensis, from the Late Triassic Caturrita Formation of South Brazil.".
Study name:
"A reassessment of the basal dinosaur Guaibasaurus candelariensis, from the Late Triassic Caturrita Formation of South Brazil.".
This study is part of submission 13058
(Status: Published).
Citation
Langer M.C., Bittencourt J.S., & Schultz C.L. 2011. A reassessment of the basal dinosaur Guaibasaurus candelariensis, from the Late Triassic Caturrita Formation of South Brazil. Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 101: 301-332.
Authors
-
Langer M.C.
-
Bittencourt J.S.
-
Schultz C.L.
Abstract
The dinosaur record of the Santa Maria beds of Rio Grande do Sul (Mid?Late Triassic; south Brazil) includes the herrerasaur Staurikosaurus pricei, and two basal members of the sauropodomorph lineage: Saturnalia tupiniquim and Unaysaurus tolentinoi. The most enigmatic of the saurischian taxa is, however, Guaibasaurus candelariensis, previously regarded as either a basal theropod or a basal sauropodomorph. This study provides a detailed anatomical revision of all specimens originally referred to G. candelariensis by Bonaparte and co-authors, including its type-series and a more recently excavated partial postcranium. Although coming from different sites, these specimens share a unique combination of traits, and at least one possible autapomorphic feature of the pelvis, which support the inclusivity and uniqueness of the species. G. candelariensis was a medium-sized (nearly 2 m long) biped with an intriguing mix of plesiomorphic and derived (eusaurischian/theropod) features. Phylogenetic studies reveal weak support for the nesting of G. candelariensis within Theropoda, but this affinity is bolstered by various traits it shares with neothero- pods. The Norian age of G. candelariensis corroborates previous studies that suggest the continuous radiation of more basal dinosauromorphs until the end of the Triassic, after the appearance of the three main dinosaur clades.
Keywords
Dinosauria; Eusaurischia; Norian; Rio Grande do Sul; Saurischia.
External links
About this resource
- Canonical resource URI:
http://purl.org/phylo/treebase/phylows/study/TB2:S13058
- Other versions:
Nexus
NeXML
- Show BibTeX reference
@ARTICLE{TreeBASE2Ref21031,
author = {Max C. Langer and Jonathas S. Bittencourt and Cesar L. Schultz},
title = {A reassessment of the basal dinosaur Guaibasaurus candelariensis, from the Late Triassic Caturrita Formation of South Brazil.},
year = {2011},
keywords = {Dinosauria; Eusaurischia; Norian; Rio Grande do Sul; Saurischia.},
doi = {10.1017/S175569101102007X},
url = {http://www.graemetlloyd.com/matr.html},
pmid = {},
journal = {Earth and Environmental Science Transactions of the Royal Society of Edinburgh},
volume = {101},
number = {},
pages = {301--332},
abstract = {The dinosaur record of the Santa Maria beds of Rio Grande do Sul (Mid?Late Triassic; south Brazil) includes the herrerasaur Staurikosaurus pricei, and two basal members of the sauropodomorph lineage: Saturnalia tupiniquim and Unaysaurus tolentinoi. The most enigmatic of the saurischian taxa is, however, Guaibasaurus candelariensis, previously regarded as either a basal theropod or a basal sauropodomorph. This study provides a detailed anatomical revision of all specimens originally referred to G. candelariensis by Bonaparte and co-authors, including its type-series and a more recently excavated partial postcranium. Although coming from different sites, these specimens share a unique combination of traits, and at least one possible autapomorphic feature of the pelvis, which support the inclusivity and uniqueness of the species. G. candelariensis was a medium-sized (nearly 2 m long) biped with an intriguing mix of plesiomorphic and derived (eusaurischian/theropod) features. Phylogenetic studies reveal weak support for the nesting of G. candelariensis within Theropoda, but this affinity is bolstered by various traits it shares with neothero- pods. The Norian age of G. candelariensis corroborates previous studies that suggest the continuous radiation of more basal dinosauromorphs until the end of the Triassic, after the appearance of the three main dinosaur clades.}
}
- Show RIS reference
TY - JOUR
ID - 21031
AU - Langer,Max C.
AU - Bittencourt,Jonathas S.
AU - Schultz,Cesar L.
T1 - A reassessment of the basal dinosaur Guaibasaurus candelariensis, from the Late Triassic Caturrita Formation of South Brazil.
PY - 2011
KW - Dinosauria; Eusaurischia; Norian; Rio Grande do Sul; Saurischia.
UR - http://www.graemetlloyd.com/matr.html
N2 - The dinosaur record of the Santa Maria beds of Rio Grande do Sul (Mid?Late Triassic; south Brazil) includes the herrerasaur Staurikosaurus pricei, and two basal members of the sauropodomorph lineage: Saturnalia tupiniquim and Unaysaurus tolentinoi. The most enigmatic of the saurischian taxa is, however, Guaibasaurus candelariensis, previously regarded as either a basal theropod or a basal sauropodomorph. This study provides a detailed anatomical revision of all specimens originally referred to G. candelariensis by Bonaparte and co-authors, including its type-series and a more recently excavated partial postcranium. Although coming from different sites, these specimens share a unique combination of traits, and at least one possible autapomorphic feature of the pelvis, which support the inclusivity and uniqueness of the species. G. candelariensis was a medium-sized (nearly 2 m long) biped with an intriguing mix of plesiomorphic and derived (eusaurischian/theropod) features. Phylogenetic studies reveal weak support for the nesting of G. candelariensis within Theropoda, but this affinity is bolstered by various traits it shares with neothero- pods. The Norian age of G. candelariensis corroborates previous studies that suggest the continuous radiation of more basal dinosauromorphs until the end of the Triassic, after the appearance of the three main dinosaur clades.
L3 - 10.1017/S175569101102007X
JF - Earth and Environmental Science Transactions of the Royal Society of Edinburgh
VL - 101
IS -
SP - 301
EP - 332
ER -
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