Guaibasaurus
Name:
Guaibasaurus
(Guaiba lizard).
Phonetic: Gu-ay-bah-sore-us.
Named By: J. F. Bonaparte, J. Ferigolo,
and A. M. Ribeiro - 1999.
Classification: Chordata, Reptilia, Dinosauria,
Saurischia, Guaibasauridae.
Species: G. candelariensis
(type).
Diet: Uncertain.
Size: Possibly up to 3 meters long.
Known locations: Brazil.
Time period: Norian of the Triassic.
Fossil representation: Almost complete and
articulated post cranial skeleton and an almost complete hind limb.
Guaibasaurus is known from fairly good remains, though the skull is unknown. When first described, Guaibasaurus was considered to be a potential theropod dinosaur, though later a similarity with the primitive sauropodomorph dinosaur Saturnalia was noted, and now Guaibasaurus is usually seen as a very primitive sauropodomorph dinosaur.
Further reading
- A new early Late Triassic saurischian dinosaur from Rio Grande do
Sol state, Brazil. - Proceedings of the Second Gondwanan Dinosaur
Symposium, National Science Museum Monographs 15:89-109. - J.
F. Bonaparte, J. Ferigolo, and A. M. Ribeiro - 1999.
- A new specimen of Guaibasaurus candelariensis
(basal Saurischia)
from the Late Triassic Caturrita Formation of southern Brazil. -
Historical Biology, 19(1): 73-82. - J. F. Bonaparte,
G. Brea, C. L. Schultz & A. G. Martinelli -
2007.
- 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 (3–4): 301–332. - Max C. Langer,
Jonathas S. Bittencourt & Cesar L. Schultz - 2011.
- Guaibasaurus candelariensis (Dinosauria,
Saurischia) and the
early origin of avian-like resting posture. - Alcheringa 36
(2): 263–267. - F. Agnolin & A. G.
Martinelli - 2012.
- Dinosaur Facts and Figures: The Sauropods and Other Sauropodomorphs.
New Jersey: Princeton University Press. p. 245. - Molina-P�rez
& Larramendi - 2020.
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