(a.k.a.‭ ‬Peirópolis titanosaur‭)

Name: Trigonosaurus.
Phonetic: Try-go-no-sore-us.
Named By: D.‭ ‬A.‭ ‬Campos,‭ ‬A.‭ ‬W.‭ ‬A.‭ ‬Kellner,‭ ‬R.‭ ‬J.‭ ‬Bertini,‭ & ‬R.‭ ‬M.‭ ‬Santucci‭ ‬-‭ ‬2005.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Sauropoda,‭ ‬Titanosauria,‭ ‬Titanosauridae.
Species: T.‭ ‬pricei‭ (‬type‭)‬.
Diet: Herbivore.
Size: Unknown due to lack of remains.
Known locations: Brazil‭ ‬-‭ ‬Marília Formation.
Time period: Maastrichtian of the Cretaceous.
Fossil representation: Partial post cranial remains including left ilium,‭ ‬six sacral‭ (‬hip‭) ‬vertebrae,‭ ‬ten dorsal‭ (‬back‭) ‬vertebrae and one caudal‭ (‬tail‭) ‬vertebrae‭ (‬MCT‭ ‬1488-R‭)‬.‭ ‬A further ten vertebrae that may actually belong to the same individual were later added‭ (‬MCT‭ ‬1719-R‭).

       Although only known from very partial remains,‭ ‬Trigonosaurus may have been similar to other South American titanosaurs such as Aeolasaurus and Adamantisaurus.‭ ‬The lack of a more complete post cranial skeleton means that it is hard to establish an accurate size estimate for the genus,‭ ‬as well as to identify any specialisations towards a specific ecological niche.‭ ‬Before it was formally named,‭ ‬Trigonosaurus was known as the‭ ‘‬Peirópolis titanosaur‭’ ‬after the location it was discovered.

Further reading
-‭ ‬On a titanosaurid‭ (‬Dinosauria,‭ ‬Sauropoda‭) ‬vertebral column from the Bauru Group,‭ ‬Late Cretaceous of Brazil‭ ‬-‭ ‬D.‭ ‬A.‭ ‬Campos,‭ ‬A.‭ ‬W.‭ ‬A.‭ ‬Kellner,‭ ‬R.‭ ‬J.‭ ‬Bertini,‭ & ‬R.‭ ‬M.‭ ‬Santucci‭ ‬-‭ ‬2005.


Random favourites