A life-size sculpture of an Ornithomimus, the species of dinosaur believed to have left the tracks, stands in the center of the gardens.
Beginning in 1997, Robert Sullivan regarded O. velox and O. edmontonicus as junior synonyms of O. antiquus.
Therizinosauridae was first given a phylogenetic definition by Paul Sereno in 1998, who defined it as all dinosaurs closer to Erlikosaurus than to Ornithomimus.