Director of the National Museum of Brazil Alexander Kellner said that this species had no teeth during its whole life, the O Globo newspaper reported on late Thursday.
Berthasaura leopoldinae was a part of the Theropoda clade, which also included the legendary Tyrannosaurus rex.
The fossils were found in the southern Brazilian state of Parana. The dinosaur lived some 70-80 million years ago, its height amounted to 80 centimeters (31 inches) while the length to about a meter (39 inches).
The species was named after Brazilian zoologist and activist Bertha Lutz, and Brazilian Empress Maria Leopoldina.