Herrerasaurus
(her_RAY-rah-sawr-us)
IMAGE
Length: 6 - 8  feet
Lived during: Late Triassic
Found: Argentina
Name Means: Herrera's lizard
Some researchers used to think errerasaurus may have been a prosauropod ancestor to huge plant eaters like Apatosaurus.  however, when the first complete skull ws found (in 1981_) it became cler that this was not a the case.  The sharp, serrated teeth and double hinged jaws belonged to a meat eater that was more porbably a very early relative of the terrible Allosaurus and Tyrannosaurus rex.
Lived at the same time as: Coelophysis, Plateosaurus, Procompsognathus
 

 
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