Australia's Earliest Theropods: Footprint Evidence in the Ipswich Coal Measures (Upper Triassic) of Queensland.

Small tridactyl footprints are reported from the Blackstone Formation of the Ipswich Coal Measures near Dinmore, in southeast Queensland, Australia. These Upper Triassic (Carnian) footprints are attributed to small theropod dinosaurs and are assigned to the ichnogenus Grallator Hitchcock, 1858 (sensu stricto). Their discovery constitutes only the second definite report of Triassic dinosaurs in Aus…