Specimen UFRGS PV0725T is articulated with hindlimbs tucked underneath its body and forelimbs flexed to the side. Although most of the neck is not preserved, the vertebrae at the base of the neck are present in UFRGS PV0725T and curve to the left, suggesting the entire neck was curved toward the left side of the body. The posture of this skeleton is similar to the resting position of birds, and is otherwise primarily known from advanced maniraptoran dinosaurs that are closely related to birds. It has also been observed in the dinosauriform "Saltopus". Like living birds, "Guaibasaurus" may have rested in this position to conserve body heat.