Trigonosaurus

Trigonosaurus is a genus of titanosaurian saltasaurid dinosaurs from the Maastrichtian Marília Formation of Brazil.[1] The type species, Trigonosaurus pricei, was first described by Campos, Kellner, Bertini, and Santucci in 2005. It is based on two specimens, both consisting mainly of vertebrae. Before its description, it was known as the "Peirópolis titanosaur", after the place it was found.

Trigonosaurus
Temporal range: Maastrichtian
~70–66 Ma
Scientific classification
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Trigonosaurus

Campos et al. 2005
Species
  • T. pricei Campos et al. 2005 (type)

References

  1. ^ Trigonosaurus at Fossilworks.org

Further reading

  • Campos, D. A., Kellner, A. W. A., Bertini, R. J. & Santucci, R. M. (2005). "On a titanosaurid (Dinosauria, Sauropoda) vertebral column from the Bauru Group, Late Cretaceous of Brazil". Arquivos do Museu Nacional 63 (3): 565-593.

External links

Adamantisaurus

Adamantisaurus ( AD-ə-man-ti-SAWR-əs) is a poorly-known genus of titanosaurian sauropod dinosaur from the Late Cretaceous Period of what is now South America. It is only known from six tail vertebrae but, as a sauropod, it can be assumed that this dinosaur was a very large animal with a long neck and tail.

Like many titanosaurians, Adamantisaurus is incompletely known, making its exact relationships difficult to establish. However, similarities have been noted with Aeolosaurus and the Bauru Group titanosaurian formerly known as the "Peiropolis titanosaur", now called Trigonosaurus.

Austroposeidon

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Brasilotitan

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Cetiosauridae

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Diplodocinae

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Ferganasaurus

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Flagellicaudata

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Gravisauria

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Huangshanlong

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Lithostrotia

Lithostrotia is a clade of derived titanosaur sauropods that lived during the Early Cretaceous and Late Cretaceous. The group was defined by Unchurch et al. in 2004 as the most recent common ancestor of Malawisaurus and Saltasaurus and all the descendants of that ancestor. Lithostrotia is derived from the Ancient Greek lithostros, meaning "inlaid with stones", referring to the fact that many known lithostrotians are preserved with osteoderms. However, osteoderms are not a distinguishing feature of the group, as the two noted by Unchurch et al. include caudal vertebrae with strongly concave front faces (procoely), although the farthest vertebrae are not procoelous.

Lohuecotitan

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Pilmatueia

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Saltasaurinae

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Tambatitanis

Tambatitanis is an extinct genus of titanosauriform dinosaur from the Early Cretaceous (probably early Albian) of Japan. It is known from a single type species, Tambatitanis amicitiae. It was probably around 14 meters long and its mass was estimated at some 4 tonnes. It was a basal titanosauriform and possibly belonged to the Euhelopodidae.

Tastavinsaurus

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Uberabatitan

Uberabatitan (meaning "Uberaba titan", in reference to where it was found) is a genus of titanosaurian sauropod dinosaur from the Late Cretaceous of Brazil. It is known from bones including neck, back, and tail vertebrae, pelvic bones, and limb bones. These fossils were found in the uppermost portion of the Maastrichtian-age Marília Formation of the Bauru Group, in Uberaba, Minas Gerais. The type species, described by Salgado and Carvalho in 2008, is U. ribeiroi. To date, it is the most recent titanosaur from Bauru Group rocks; other titanosaurs from the Bauru Group, including Baurutitan and Trigonosaurus, come from lower (thus older) levels. Like other sauropods, Uberabatitan would have been a large quadrupedal herbivore.A 2019 redescription of assigned and new material from the same locality places Uberabatitan as a non-saltasaurid lithostrotian with an upper body size estimate for large individuals at 26 meters.

Xianshanosaurus

Xianshanosaurus is a genus of sauropod dinosaur from the Early Cretaceous (Aptian-Albian) of the Ruyang Basin in Henan Province, China. It was described in 2009 by a team of Chinese paleontologists. The type species is X. shijiagouensis.

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