Wilkerson (punches, ejection) was fined $20,000, while Richardson (grabbed opponent's facemask after play) was docked $8,268.
Richardson and Wilkerson both lost their cool in a heated end zone scuffle after the Packers completed a two-point conversion in the third quarter. Richardson was flagged for unsportsmanlike behavior, while Wilkerson was tossed.
Wilkerson has since apologized to his teammates for his actions.
Packers tight end Andrew Quarless was also fined $8,268 for his role in the scuffle.
Also, San Francisco quarterback Colin Kaepernick was fined $11,025 for using "inappropriate language" after a play against Chicago last Sunday night.
Kaepernick, who has said he will appeal the fine, was flagged for unsportsmanlike conduct after he threw an interception in the fourth quarter of the 49ers' 28-20 loss to the Bears. He and Chicago defensive end Lamarr Houston went at it, but Houston acknowledged that Kaepernick didn't say anything offensive or out of line.
St. Louis linebacker Jo-Lonn Dunbar was fined $16,537 for a hit on Tampa Bay quarterback Josh McCown. Giants linebacker Jameel McClain was docked $8,268 for a late hit on Arizona quarterback Drew Stanton.
Information from the Associated Press was used in this report.