"Little Foot" is the nickname given to a nearly complete Australopithecus fossil skeleton found in 1994Ð1998 in the cave system of Sterkfontein, South Africa. Due to recent discoveries, Little Foot is probably around 3.3 million years old versus the 2.2 million years old that other researchers believed. This discovery is incredibly important because this could mean that Little Foot is a direct ancestor to today's humans. The controversial dating on this fossil is primarily due to the age of formation of the rocks that surrounded its fossilized skeleton. The reason for the 2.2 million years dating is primarily caused by the age of flowstones that surrounded the skeleton. These flowstones filled voids from ancient erosion and collapse and formed around 2.2 millions years ago, however the skeleton is believed to be older. Read more ...

New instrument dates old skeleton before 'Lucy'; 'Little Foot' 3.67 million years old   Science Daily - April 1, 2015
A skeleton named Little Foot is among the oldest hominid skeletons ever dated at 3.67 million years old, according to an advanced dating method. Little Foot is a rare, nearly complete skeleton of Australopithecus first discovered 21 years ago in a cave at Sterkfontein, in central South Africa. Stone tools found at a different level of the Sterkfontein cave also were dated at 2.18 million years old, making them among the oldest known stone tools in South Africa.

New instrument dates old skeleton - 'Little Foot' 3.67 million years old   PhysOrg - April 1, 2015
A skeleton named Little Foot is among the oldest hominid skeletons ever dated at 3.67 million years old, according to an advanced dating method. Little Foot is a rare, nearly complete skeleton of Australopithecus first discovered 21 years ago in a cave at Sterkfontein, in central South Africa. The new date places Little Foot as an older relative of Lucy, a famous Australopithecus skeleton dated at 3.2 million years old that was found in Ethiopia. It is thought that Australopithecus is an evolutionary ancestor to humans that lived between 2 million and 4 million years ago.