Temporal range: Cretaceous
|Tyrannosauripus pillmorei, probable Tyrannosaurus footprint from Philmont Scout Ranch, New Mexico|
|Trace fossil classification|
Thulborn & Wade, 1984
In the 1980s, palaeontologists first studied a place in Queensland called Lark Quarry. There they found three dinosaur ichnogenera. One set of tracks belongs to a small coelurosaur – Skartopus; a second belonged to a hypsilophodontid called Wintonopus; the third was of a large theropod, Tyrannosauripus.
New research made by palaeontologists from Queensland, states, that the third set of tracks did not belong to theropod at all. They say that "exists strong morphological similarity between Tyrannosauropus [sic], and iguanodontian ichnotaxon Amblydactylus gethingi".
The lead author of the research, Anthony Romilio, however believes that Lark Quarry footprints are from another ornithopod, Muttaburrasaurus langdoni, whose remains were found in Queensland. He states:
- "Making the distinction between the three-toed tracks of herbivorous ornithopod dinosaurs and the three-toed tracks of carnivorous theropod dinosaurs can be quite difficult. This confusion has led to numerous ornithopod dinosaur tracks being incorrectly identified as belonging to theropods, and vice versa."
- Anthony Romilio & Steven W. Salisbury (2011). "A reassessment of large theropod dinosaur tracks from the mid-Cretaceous (late Albian–Cenomanian) Winton Formation of Lark Quarry, central-western Queensland, Australia: a case for mistaken identity". Cretaceous Research. 32 (2): 135–142. doi:10.1016/j.cretres.2010.11.003.