The Infant School Anomaly is an Anomaly linking a classroom in an infant school in the present day to the Precambrian supereon. The Anomaly opened up in 2011 when Convergence started, and the Precambrian atmosphere and an unknown number of Precambrian Worms came through. It was presumably closed by New Dawn along with all the other Anomalies that had opened for Convergence. (Episode 5.5)