Figure 6: Different preservations observed in the Vale de Meios tracksite.
From: Ichnological evidence of Megalosaurid Dinosaurs Crossing Middle Jurassic Tidal Flats

(A–D) True tracks with degree of preservations between 2 and 3 (following Belvedere and Farlow37). (H,I) modified true tracks preservation. (I,L) true tracks with mud collapsing. This type of preservation of tracks accounts for the 5%, 75% and 20%, respectively in the whole tracksite.