However , Rob Gay in 2002 showed that that these specimens were misinterpreted . Several specimens of `` juvenile coelophysids '' were actually small crurotarsan reptiles such as Hesperosuchus . However , Rob Gay showed in 2002 that these specimens were misinterpreted ( several specimens of `` juvenile coelophysids '' were actually small crurotarsan reptiles such as Hesperosuchus , and it appears that in some cases bigger individuals were crushed on top of smaller ones ) , and there is no longer any evidence to support cannibalistic behavior in Coelophysis .