Science and Education A Unique Theropod Trackway The Procedures for Removal l. Careful and thorough measurements are made. 2. Grass and other debris are removed and the tracks exposed. 3. Each track is undercut and covered with aluminum foil. 4. The tracks are then encased in plaster and burlap jackets and removed from the field. In the laboratory they will each be cleaned and the most revealing in the series will be molded and cast. Back to Theropod Trackway