The two-time team captain will look for a new home at the next level.
Shelton was a two-year full-time starter for the Nittany Lions.
The Nittany Lions are now 26-12 and have won six of their last seven.
Danica Maynard was named to the All-USCHO Third and Rookie Team, while Tessa Janecke is now the first Nittany Lion to be named to the All-USCHO First Team.
The Nittany Lions get a chance to sweep the Terrapins in a doubleheader tomorrow.
Dinkins appeared in 48 games for the Nittany Lions.