(long legged form?).
Named By: Julia B. Desojo, Martin D. Ezcurra & Edio E. Kischlat - 2012.
Classification: Chordata, Reptilia, Aetosauria, Stagonolepididae.
Species: A. brasiliensis (type).
Size: Estimated to be about 2 meters long.
Known locations: Brazil - Santa Maria Formation, Alemoa Member.
Time period: Carnian to Norian of the Triassic.
Fossil representation: Partial post cranial skeleton that was partially articulated.
is considered to be one of the oldest aetosaurs
currently known to us.
from Argentina and Stagonolepis
from Scotland can
match Aetobarbakinoides for age, but together
they show that even in
the earliest known appearances of aetosaurs, they were already
widespread across what would become South America and Europe.
Aetobarbakinoides is the first aetosaur that has been named from a description focused upon something else other than the appearance of the osteoderm armour. Instead of the armour, the description of Aetobarbakinoides was based upon the appearance of the vertebrae. Although the vertebrae of Aetobarbakinoides are noted to bear similarities with the vertebrae of Desmatosuchus, they are still very different to any other currently known aetosaur.
In life Aetobarbakinoides would have been like other aetosaurs in that it would have been a squat quadrupedal reptile that was protected from the teeth of predators by an arrangement of osteoderm armour across the back. Although the skull of Aetobarbakinoides is unknown at the time of writing, other aeotsaurs are known to have been herbivorous without any exceptions known so far, so by association Aetobarbakinoides probably had a herbivorous diet.
- A new aetosaur genus (Archosauria: Pseudosuchia) from the early Late Triassic of southern Brazil. - J. B. Desojo, M. D. Ezcurra & E. E. Kischlat - 2012.