Full reference: R. S. Lull. 1904. Fossil footprints of the Jura-Trias of North America. Memoirs of the Boston Society of Natural History 5(11):461-557
Parent taxon: Dinosauria according to R. S. Lull 1904
Sister taxa: Actiosaurus, Carnosauriformes, Cridotrisauropus, Dictyoolithidae, Dystrophaeidae, Geosauridae, Gyrotrisauropus, Harpagosauria, Harpedactylus, Herreravia, Lagunculapes, Nyasasaurus, Ornithischia, Ornithischiformes, Ornithoscelida, Paleodinosauria, Phytodinosauria, Polemarchus, Prismatoolithidae, Rachitrema, Ravatosauropus, Saltosauropus, Saurischia, Sillimanius, Spondylosoma, Steropoides, Symphypoda, Tarsodactylus, Therosauria, Toyamasauripus, Tretospondylia, Xiphopeza, Youngoolithidae
Subtaxa: Tarsoplectrus angustus, Tarsoplectrus elegans
Ecology: