an Entity references as follows:
Abelichnus is an extinct ichnogenus of dinosaur footprint from the Candeleros Formation and the Rio Limay Formation. The type ichnospecies, Abelichnus astigerrae, was first discovered in Argentina in 1987 and was recorded as the biggest known dinosaur footprint ever discovered. Abelichnus probably grew to a size of 12.5-13 meters (41-42 ft) long.