Her erect posture seemed a deliberate challenge to my already slouchy one.

Many of the traits today seen as unique to mammals had their origin within early therapsids, including an erect posture.

The dance involves the swaying of broad hips and the gentle movements of erect posture from side to side.

Despite this, several lines of evidence including trackways and limb morphology suggest that diadectids moved in a more erect posture.