Named By: M. A. Cerroni, M. J. Motta, F. L. Agnolin, A. M. Aranciaga Rolando, F. Brissón Egli & F. E. Novas - 2019.
Classification: Chordata, Reptilia, Dinosauria, Saurischia, Theropoda, Abelisauridae.
Species: T. cuyi (type).
Size: Holotype roughly estimated at about 4 meters long.
Known locations: Argentina, Rio Negro Province - Huincul Formation.
Time period: Cenomanian/Turonian of the Cretaceous.
Fossil representation: Partial remains of the skull and post cranial skeleton.
was named from very partial fossil remains, so it is hard to be certain
and the full life features of this dinosuar. At the time of discovery,
what can be said is that Tralkasaurus seems to have
been an abelisaurid
theropod, and one that seems to have been smaller than most other known
abelisaurid dinosaurs. This perhaps by might reflect a different prey
specialisation for Tralkasaurus, one that avoided
it competing with
other larger theropod dinosaurs in its ecosystem, such as
Other abelisaurid theropod dinosaurs from the same Hincal Formation that Tralkasaurus is known from include Skorpiovenator and Ilokelesia. Other dinosaurs in general that Tralkasaurus may have encountered include Mapusaurus, Limaysaurus and the massive Argentinosaurus.
- A new abelisaurid from the Huincul Formation (Cenomanian-Turonian; Upper Cretaceous) of Río Negro Province, Argentina. - Journal of South American Earth Sciences. - M. A. Cerroni, M. J. Motta, F. L. Agnolin, A. M. Aranciaga Rolando, F. Brissón Egli & F. E. Novas - 2019.