List of stratigraphic units with dinosaur trace fossils
This is a list of stratigraphic units dinosaur trace fossils have been recovered from. Although Dinosauria is a clade which includes the descendant taxon Aves (modern birds), this article covers only stratigraphic units containing Mesozoic forms.
Source: Wikipedia — List of stratigraphic units with dinosaur trace fossils (CC BY-SA 4.0)