|Led from||Stone Henge,Present|
|Led to||Unknown Location,Alternative Timeline|
|Who/what went through|| One Iguanodon|
The Stone Henge Anomaly is an Anomaly linking Stone Henge to most likely the Cretaceous.It is the first invisible Anomaly seen in the Series.
The Invisible Anomaly opened up and was not detected due to it being indivisible but was detected by the Artefact due to it being very powerful this caused the A.R.C team to investigate.
The Anomaly allowed one Iguanodon and Claudia Brown through.
Later on the team discover why the Anomaly could not be detected and the Iguanodon is forced back through the Anomaly before it closes.