Why did abelisaurs have small arms?

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The Chilean Abelisaur probably had the same small arms and short snout as the rest of its relatives. There is no consensus on the reason behind the shape of the limbs. The best hypothesis indicates that the creatures lost the functioning of the genes that were responsible for the development of their arms, while they had everything necessary to hunt using only their skull.

The Abelisauridae family did not always have these charac Phone Number List teristics. Jared Amudeo, author of the article, explains that previous fossil records demonstrate that there has been a systematic reduction in size between the limbs and snout of the predator.

“Something happened there during the dispersal events that they experienced during Pangea and its subsequent speciation. Something is telling us that they didn't need big arms. But there are still studies to demonstrate whether it was a functional specialization of this trait or a neutral loss,” clarified the researcher, in an interview for the University of Chile.

A new specimen of the duck-billed dinosaur was discovered in Chile.  His name is Gonkoken Nanoi.
Gonkoken Nanoi, a new species of “duck-billed” dinosaur was discovered in Chile
It is the fifth hadrosaur discovered in the South American country. The new specimen is considered a link to more advanced species.
Where there was a tooth, there will be more bones
In the absence of more records in the area, it is still not possible to determine exactly what kind of abelisaurid was located in Chile. However, the Paleontological Network is positive about the historical potential of the Pichasca Natural Monument.



“It is very likely that where this tooth was discovered is the skeleton of this animal, and not only of this animal, but of many species. So, this discovery opens a path for subsequent work to learn more about this dinosaur and define its relationship with lineages from Argentina and Brazil or if it is a different species or lineage,” Amudeo concluded.

The Abelisauridae family is named in honor of its discoverer Roberto Abel , Argentine historian and paleontologist. The name literally means Abel's lizard.